Words related to -ative

calmative (adj.)
"quieting excessive action," by 1831, from French calmatif; see calm (adj.) + -ative. A Greek-Latin hybrid; purists prefer sedative, but OED writes that "The Latinic suffix is here defensible on the ground of It. and Sp. calmar, F. calmer ...." Also as a noun, "a quieting drug" (1847).
fixative (adj.)
1640s, from fix (v.) + -ative, suffix meaning "of or related to; tending to." As a noun, from 1870, "that which fixes."
justificative (adj.)
"having the power to justify," 1610s; see justification + -ative. Related: Justificator; justificatory.
preventative (adj.)

"serving to prevent or hinder," 1650s, from prevent + -ative. An irregular formation; preventive is more correct. As a noun from 1774.

talkative (adj.)
early 15c.; see talk (v.) + -ative. An early hybrid word in English. Originally especially "boastful," but now considered less pejorative than loquacious or garrulous. Related: Talkatively; talkativeness.