The list is an assemblage from many different languages. To keep all abbreviations distinct, some counterintuitive abbreviations had to be forged (a few conflicts have been preserved, though). Since any given language will need only a small subset from the list, abbreviations can then be streamlined.

value	abbrev.	category	comment
1^st person	1	person
2^nd person	2	person
3^rd person	3	person
abessive	(prv) (avers)		use 'privative' and 'aversive'
abilitative	(hab)		use 'habilitative'
ablative	abl	local case relator	'from' (= separative)
absolute	absl	nominal	free non-incorporated form of noun
absolutive	abs	grammatical case or pronominal index slot	in ergative system
abstract	abstr	nominal
accusative	acc	grammatical case relator
across	acrs	spatial demonstrative	'same level'
action nominalizer	acnnr	deverbal nominal derivation
active	act	voice
actor	a	pronominal index slot	not known as a case in 2017
actor topic	atop	voice
additive, -ional	add	case relator
addressee-honorific	2hon	honorification
addressee-humble	2hml	honorification
adelative	adel	local case relator
adessive	adess	local case relator
adhortative	(hort)		use 'hortative'
aditive	(all)		use 'allative'
adjectiv(al)izer	adjr	derivational or syntactic
admonitive	adm	mood
adverbializer	advr	derivational or syntactic
adversative	adrvs	interpropositional relation	'whereas'
affirmative	aff(mt)	opposite to negative	normally unmarked
agent nominalizer	agnr	deverbal nominal derivation
agentive	ag
alienable	al	possessive attribution morpheme
allative	all	local case relator	'to'
allocutive	alloc	honorification	kind of addressee-honorific
ambient	amb	derivational	weather, time, environment
ambulative	ambv	verbal
anaphoric	ana	pronominal
andative	and	deictic
animate	an
antepresent	atp	verbal	only if distinct from 'perfect'
anterior	ant	tense	relative tense
anticausative	acaus	deverbal verb derivation	= deagentive, blocking of actor argument
antipassive	apass	voice
aorist	aor	tense-aspect	perfective past (as opposed to imperfect)
applicative	appl	deverbal verb derivation	subtypes may be distinguished by appl.rec, appl.inst etc.
apprehensional	app(r)h	interpropositional relation	'lest'
approbative	app(r)b	illocutionary formative	approval to what is said
approximative	app(r)x	verbal	distinct from paenitive
apudessive, -lative	apud		only if distinct from adessive/-lative
ascensive	asc	verbal	upward movement
assertive	asrt	modality	subtype of declarative: high degree of commitment
associative	ass(oc)	adnominal case relator	'with, à'
associated andative	ass.and	verbal	'go Ving, go to V, V on the way there'
associated ventive	ass.ven	verbal	'come Ving, come to V, V on the way here'
assumptive	assum	evidential
attentional	attn	imperative
attenuative	att(v)	verbal or adjectival derivation
attributor	at	nominal	links an attribute to the head
audible	aud	demonstrative
auditory	aud	evidential	≠ 'hearsay'
augmentative	aug	denominal nominal derivation
authentic	auth	nominal or adjectival
autonomous motion	am	verbal
auxiliary	aux		if it is the only auxiliary root
aversive	avers	case relator	only if distinct from 'ablative' and 'privative'
background	bg	aspect	only if distinct from imperfective
benefactive	ben	case relator	'for'
cardinal	card	numeral	if marked grammatically
caritive	(prv)		use 'privative'
catalytic	cat	derivational	submorphemic unit enabling another operation
causative	caus	deverbal verb derivation
certitive	cert	modal category
change of state	COS	aspectual
circumstantial	circ	interpropositional relation	'in, by'
clamative	(excl)		use 'exclamative'
class #	cl#	noun class #	# for numbers; specific labels otherwise
classifier	clf	nominal	followed by class identifier, e.g. hum
cohortative	(hort)		use 'hortative'
collective	coll
comitative	com	case relator	'with, in the company of'
common	c(om)m	gender	either masc. or fem.; cf. 'human' and 'animate'
comparative	cmpr	degree of comparison
complementizer	comp	subordinator	= sr
completive	cmpl	aspect	only if distinct from perfective
compounder	cmpj		marker of incorporation joint
conative	cntv	mood
concessive	conc	interpropositional relation	'although'
concrete	cncr	pronominal
conditional	cond	1) interpropositional relation; 2) mood	1) 'if'; 2) 'would'
conductive	cndv	case relator	'taking X with oneself'
conjectural	conjc	evidential
conjunctive	conj	interpropositional relation	of non-finite predicate
connector, -ive	conn		if there is only one
consecutive	consec	interpropositional relation	'so that'
construct	const	nominal	construct state
converb	(ger)		use 'gerund'
continuative	cont	aspect/aktionsart
copula	cop		if there is only one
counterfactual	(irr)	mood	use 'irrealis'
crastinal	cras	tense	'tomorrow'
culminative	clm	verbal	'end up / get as far as'
customary	(hab)	aspectual	use 'habitual'
dative	dat	grammatical case relator
deagentive	(acaus)		use 'anticausative'
debitive	deb		mood, hyperonym of 'obligative'
declarative	decl	sentence-type	normally unmarked
deferential	defr	honorification	~ speaker-humble
definite	def	determination
deictic of 12 person	d12	demonstrative
deictic of 1^st person	d1	demonstrative
deictic of 2^nd person	d2	demonstrative
deictic of 3^rd person	d3	demonstrative
delative	del	local case relator	'down from'
demonstrative	dem	determination	accompanied by specific feature
dependent verb form	(subj)		use 'subjunctive'
derelationalizer	derel	nominal
descensive	desc	verbal	downward movement
desiderative	des	verbal
destinative	dest	local case or directional	‘up to goal’ if typically for human destinations, use 'benefactive'; if on non-finite verb form which itself represents the goal, use 'supine'
determiner	det	pronominal	will normally be def, indef, gnr, spec, nspec
detransitivizer	detr	deverbal verb derivation	see also 'anticausative' and 'introversive'
different subject	ds
diminutive	dim	denominal noun derivation
direct	dr	voice	vs. inverse
direct evidential	direv	evidential
direct object	do	pronominal index slot
directional	dir	case or verb derivation	(if there is only one:) 'towards'; use and and ven for deictic directionals
directive	dirv	modal
dishabilitative	dishab
disjunctive	disj
dissociative	dissoc
distal	dist	demonstrative	remote from deictic center
distributive	distr	nominal or verbal
donative	don		auxiliary of benefactive construction
down(wards)	infra	spatial demonstrative
dual	du, dl	number
dual exclusive	de	number
dual inclusive	di	number
dubitative	dub	mood
durative	dur	aktionsart
dynamic	dyn	aktionsart	vs. stative
egressive	egr	aktionsart
elative	elat	local case relator	'out of'
elongated	elong	classifier
emotive	emot
emphasizer/emphatic	emph	1) information structure marker; 2) pronominal
equative	eqt	1. case; 2. predicative	'as'; feature/marker of adjective in nominal clause
ergative	erg	grammatical case or pronominal index slot	in ergative system
essive	ess	case relator	'as'; see also 'transformative'
euphonic	eu
evidential	evid	verbal	if there is only one
exclamative	excl	mood
exclusive	(de, pe)		use 'dual exclusive', 'plural exclusive'
exist(ential)	exist	grammatical verb
experiential	exper	aspect
extensive	ext
extrafocal	exfoc	verbal	status of subordinate clause of cleft-sentence
extraversive	extrv	deverbal verb derivation	transitivization by addition of undergoer
factitive	fact	denominal/deadjectival verb derivation	A-fact NP 'make NP A'
familiar	fam	pronominal	if distinct from 'definite'
feminine	f	gender
final	fin	1) aspect; 2) = purposive	1: only if distinct from 'perfective' and 'completive'
finite	fin	verbal
first person dual inclusive	12		if treated as a quasi-singular; otherwise 'dual inclusive'
flat	plan	classifier
focus	foc	information structure
formal	frm	mood
frequentative	freq	aktionsart	multiple times on several occasions
future	fut	tense
generic	gnr	determination
genitive	gen	grammatical case relator
gerund	ger	verbal	verbal adverb or converb
gerundive	(deb)		use 'debitive'
goal	g	pronominal index slot	only if distinct from io; case is 'allative'
habilitative	habil	modal
habitual	hab(it)	aktionsart	~ customary
habitual-generic			use 'habitual', 'generic'
habitual-past			use 'habitual', 'past'
hearsay	hs	evidential	≠ 'auditory'
hesitative	hesit	information structure
hesternal	hest	tense	yesterday's past
hodiernal future	hodfut	tense	today's future
hodiernal past	hodpst	tense	today's past
honorific	hon	honorification
horizontal	hor	positional
hortative	hort	mood	1^st person imperative
human	hum
humble	hml	honorification	comprises 'speaker-humble, addressee-humble, referent-humble'
hypocoristic	hcr	affect
hypothetical	hyp	mood
illative	ill	local case relator	'into'
immediative	imm	aspect
immediate/imminent future	immfut	tense
immediate past	(recpst)		use 'recent past'
imperative	imp	mood
imperceptible	impc	demonstrative
imperfect	impf	tense-aspect	imperfective past; vs. aorist
imperfective	ipfv	aspect
impersonal	impr	pronominal	only if formally distinct from the specific persons
impersonal passive	ips	voice	passive without promotion to subject
inactive	inact	grammatical case or pronominal index slot	in active system
inalienable	inal	nominal	possessive attribution morpheme or feature
inanimate	inan
inceptive	(ingr)		use 'ingressive'
inchoative	inch	denominal verbal derivation	N/A-inch 'become N/A'
inclusive	(di, pi)		use 'dual inclusive', 'plural inclusive'
incompletive, noncompletive	incmp(l)	aspect	normally = imperfective
inconsequential	incons	interpropositional relation
incorporative		incj	marker of incorporation joint
indefinite	indf	determination
independent	indep	mood	only if distinct from indicative
indicative	ind	mood
indirect interrogative	indint	clause type
indirect object	io	pronominal index slot
inessive	iness	local case relator	'inside'
inferential	infr	mood or evidential
infinitive	inf	verbal
ingressive	ingr	aktionsart
initializer	initr	information structure	only if distinct from hes
injunctive	inj	mood
instructive	(man)		use 'manner'
instrument nominalizer	instnr	deverbal nominal derivation
instrumental	inst(r)	case relator
intensive	ints	verbal	often aktionsart
intentional	intl
interrogative	int	sentence type	particle or morphological category
intransitive	intr	verbal	morpheme or grammatical category
intransitive subject	s	pronominal index slot	only if distinct from both a and p; use sbj otherwise
introversive	intrv	deverbal verb derivation	blocking of undergoer argument
inverse	inv	usually verbal	vs. direct
invisible	invs	demonstrative
involitive	invol	verbal category	only if distinct from nvol
irrealis	irr	mood
iterative	iter	aktionsart	several times on one occasion
jussive	juss	mood	3^rd ps. imperative or dependent mood
lative	lat	local case relator	'to ~ from ~ via'
ligature	lig	nominal
limitative	lim		'only'
linker	lnk	nominal	links subconstituents of a phrase, typically an NP; properly includes 'attributor'
locative	loc	local case relator
locative topic	ltop	voice
logophoric	log	pronominal or verbal
malefactive	mal	deverbal verb derivation
manner	man	case relator	also on non-finite verbs
manner nominalizer	mannr	deverbal nominal derivation
masculine	m	gender
masculine personal	mhum	gender
medial	med	demonstrative	medial distance from deictic center
medial	medv	verbal	verb form in a chain
mediative	medt	case relator	'between, among; by means of'
mediopassive	medp	voice
middle	mid	voice	excludes passive
mirative	mir	verbal or sentence type	'surprise'
motivative	mtv	case relator	'by'; sometimes called 'causal'
multiple action	mult
multiplicative	mulv	numeral
narrative	narr	tense
nativizer	ntvr	derivation	converts loans into a native category
near future	nrfut	tense	after 'immediate future'
negative	neg
neuter	n	gender
neutral	ntl		in contrast with other members of the paradigm, e.g. positional
nominalizer	nr	deverbal nominal derivation or syntactic subordination	see also the more specific ones
nominative	nom	grammatical case relator
non-	n		e.g. npst
non-finite	nfin	verbal	inflectional counterpart of NR & GER
non-future	nfut	tense
non-human	nhum	gender
non-masculine personal	nm	gender
non-past	npst	tense
non-plural	npl	number	< 3
non-singular	nsg	number	> 1; only if there is a plural for > 2
non-specific	nspec	determination
non-visual	nvis	evidential	non-eye-witness
non-volitional	nvol	verbal
noun class #	cl#	noun class #	# is a number or a feature
numeral	num	pronominal	subcategory
object	obj	pronominal index slot
obligative	oblg	mood, hyponym of 'debitive'
oblique	obl	case relator
obviative	obv	person	vs. proximate
open container	oc	classifier
optative	opt	mood
ordinal	ord	numeral
paenitive	paen	verbal	'almost'
partial affectedness	prl	verbal
participle	ptcp	verbal	as a marker, not as a conjugation form
partitive	prtv	case relator
passive	pass	voice
past	pst	tense
patient nominalizer	patnr	deverbal nominal derivation
paucal	pau	number
pejorative	pej	affect
perfect	p(r)f	tense-aspect
perfective	pfv	aspect
pergressive	(perl)		use 'perlative'
perlative	perl	local case relator	'through'
permanent	perm
person(al)	ps	pronominal
place nominalizer	locnr	deverbal nominal derivation
pluperfect	plup	tense	past or perfect of a past
plural	pl	number
plural exclusive	pe	number
plural inclusive	pi	number
plural object	plo	verbal	class of classificatory verb
pluritive	(pl)		plural of a singulative; use 'plural'
polite	(frm)		use 'formal'
portative	port
positional	pos	verbal
positive	(aff)		use 'affirmative'
possessed	(rel)		use 'relational'
possessive	poss	possessive determiner, pronoun and pronominal index slot	use gen, at, prt or pry otherwise
possessive classifier	pcl		followed by specific class feature
postcrastinal	pocras	tense	future after tomorrow
postelative	postel	local case relator	'from behind'
posterior	post	relative tense
postessive	postess	local case relator	'behind'
post-hodiernal	pohod	tense	future after today
potential	pot	mood
precative	prec	mood	for requesting
predicative	pred	nominal	predicative form
present	prs	tense
presumptive	prsmt	mood/evidential	typically a particle
preterite	(pst)		use 'past'
pre-hesternal	prhest	tense	past before yesterday
primary object	po	pronominal index slot
privative	pr(i)v	case relator	'without'
processive, -ual	proc	denominal verb derivation
product nominalizer	prdnr	deverbal derivation
progressive	prog	aspect
prohibitive	proh	mood	negative imperative
prolative	prolat	local case relator	'along, by (way of)'
proper name	prpn	nominal	marker on proper names
property	ppy	nominal	dummy possessum
proprietive	ppv	case or denominal derivation	'having, provided with'
prosecutive	prosec	case relator	'on from X'
prospective	prosp	tense-aspect	'going to'; opposite of perfect
proximal	prox	demonstrative	near the deictic center
proximate	prx	person	vs. obviative
proximative	(paen)	verbal	use 'paenitive'
punctual	pnct	aspect or aktionsart
purposive	(dest)		use 'destinative'
qualifier	qul	verbal
quality nominalizer	qualnr	deverbal nominal derivation
question marker	(int)		use 'interrogative'
quotative	quot		marking indirect speech
realis	rls	mood	vs. irrealis
realization	rlz
recent past	recpst	tense	= immediate past
reciprocal	rcp	voice or pronominal
reconfirmative	recnf
reduplicative			gloss by function
referent-honorific	3hon	honorification
referent-humble	3hml	honorification
referential	rftl	deverbal nominal derivation
referentive	rfv	case relator	'about'
reflexive	r(e)fl	voice or pronominal
reinforcement	(intns)		use 'intensive'
relational(izer)	rlr	nominal
relative	rel	subordinative and/or pronominal	in relative clause
relative	(rfr)		use 'referentive'
remote	(dist)	demonstrative	use 'distal'
remote past	rempst	tense
repetitive	rep	aktionsart	only if distinct from iterative
reportative	rprt	evidential
restrictive	(lim)		use 'limitative'
resultative	res	aspect or aktionsart
reversive	rvrs	aktionsart
same subject	ss
secondary object	so	pronominal index slot
semelfactive	smlf	aktionsart
sensory	sens	evidential
separative	(abl)		use 'ablative'
sequential	seq	interpropositional relation	vs. simultaneous
similative	simv	case relator	'as, like'
simultaneous	sim	interpropositional relation	vs. sequential
singular	sg	number	restricted
singulative	sgt	nominal	vs. collective
sociative	soc	verbal	'together'
speaker-honorific	1hon	honorification
speaker-humble	1hml	honorification
specific	spec	determination
speculative	specl	evidential
spherical	spher	classifier	'round object'
stative	stat	aktionsart
subelative	subel	local case relator	'from under'
subessive	subess	local case relator	'under'
subject	sbj	pronominal index slot
subjunctive	sbjv	mood
sublative	subl	local case relator	'to under'
subordinator	sr	interpropositional relation	only for the single universal subordinator ('that')
superdirective	(supl)		use super-lative
superelative	supel	local case relator	'from above'
superessive	supess	local case relator	'above'
superficial	supf		'on the surface'
superlative	sup	degree of comparison
super-lative	supl	local case relator	'to above'
supine	supn	non-finite verbal	‘(in order) to V’
surprise	(mir)		use 'mirative'
tag question	tag	sentence type
temporal	tmp		in combination with more specific features
temporary	temp	verbal	'for a while'
terminative	term	local case or aktionsart	'up to'
timitive	(apph)		use 'apprehensional'
topic(alizer)	top	information structure
total affectedness	tot	verbal
transformative	trnsf	case relator	'becoming N'; dynamic counterpart of essive
transitional	trnl
transitive	tr	verbal	morpheme or grammatical category
transitive patient	p	pronominal index slot	only if opposed to both s and a; use obj otherwise
transitive subject	a	pronominal index slot	only if opposed to both s and p; use erg otherwise
transitivizer	trr	deverbal verb derivation
translative	trnsl	local case relator	'across'
transportative	trp	verbal	'transporting X'
trial	trl	number	only if distinct from paucal
undergoer	u	pronominal index slot
undergoer topic	utop	voice
unrestricted	(pl)		use 'plural'
unspecified	unspec	person	unspecified argument of relational base
up(wards)	supra	spatial demonstrative
validator			use 'assertive', 'declarative'
ven(i)tive	ven	deictic
verbal interrogative	intv		only if distinct from both int and indint
verbalizer	vr, vbz	verb derivation
vertical	vert	positional
visible	vis	demonstrative
visual	vis	evidential	eyewitness
vocative	voc	case relator
volitional, volitive	vol	verbal
zero	∅		making no contribution to sentence meaning