extrusive (adj.)

"the act of extruding; a thrusting or driving out, expulsion," 1530s, formed as a noun of action from past-participle stem of extrudere, from ex "out, out of" (see ex-) + trudere "to thrust, push," from PIE *treud- "to press, push, squeeze" (see threat).

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).