Latin roots are typically acategorial, above the typological average.
Latin stems are typically fixed to one of the major categories.
This does not include relationality – government of a complement – in a regular way.
In one class of cases, relationality is part of a lexeme's combinatory potential. Then there may be (quasi-suppletive) lexical pairs.
In another class of cases, relationality is optional: a given form may or may not be combined with a complement.
For transitive bases, there are two grammatical detransitivization processes (passivization and reflexivization).
In no case is there a general grammatical or derivational rule of relationalization or derelationalization.
Contrariwise, nominal case is exploited in constructions like locative alternation, external possessor and causer/causee adjunct, where other languages manipulate the relationality of the head.