"tending to bring in something new; introducing or tending to introduce innovations; characterized by innovations," 1796 (with an isolated use from c. 1600); see innovate + -ive. Related: Innovatively; innovativeness.
1540s, "introduce as new" (transitive), from Latin innovatus, past participle of innovare "to renew, restore;" also "to change," from in- "into" (from PIE root *en "in") + novus "new" (see new). Intransitive meaning "bring in new things, alter established practices" is from 1590s. Related: Innovated; innovating.
word-forming element making adjectives from verbs, meaning "pertaining to, tending to; doing, serving to do," in some cases from Old French -if, but usually directly from Latin adjectival suffix -ivus (source also of Italian and Spanish -ivo). In some words borrowed from French at an early date it has been reduced to -y (as in hasty, tardy).