Meaning

noun (logic) a proposition that is accepted as true in order to provide a basis for logical reasoning

verb maintain or assert

verb take as a given; assume as a postulate or axiom

originEtymology tree Latin poscō? Latin postulō Latin postulātusnom. Latin postulātumbor. English postulate Borrowed from Latin postulātum, a neuter nominalization of postulātus, perfect passive participle of postulō, possibly from poscō. See -ate (noun-forming suffix) for more. Cognate with French postulat.

Etymology from Wiktionary, CC BY-SA 3.0