Meaning

adjective relating to or having the nature of illation or inference

adjective resembling or dependent on or arrived at by inference

adjective expressing or preceding an inference

originFrom Late Latin illātīvus (“illative”), from Latin illātus, perfect passive participle of inferō (“carry or bring into somewhere; bury; conclude”), from in + ferō (“bear, carry; suffer”).

Etymology from Wiktionary, CC BY-SA 3.0