illokutiv

listen to the pronunciation of illokutiv
Deutsch - Englisch
illocutionary
Of, pertaining to, or deriving from illocution, the performance of acts by speaking

I pronounce you man and wife is a descriptive statement, but also has illocutionary force.

(Dilbilim) Relating to or being the communicative effect (as commanding or requesting) of an utterance. "There's a snake under you" may have the illocutionary force of a warning
Relating to or being the communicative effect (as commanding or requesting) of an utterance [“There's a snake under you” may have the illocutionary force of a warning]
{s} pertaining to linguistic act carried out by a speaker in producing an expression