Dictionary
-ative
a combination of
-ate 1 and
-ive, used to form adjectives from stems in
-ate 1 (
regulative); on this model, because of the frequency and productivity of
-ate 1, used independently to form adjectives from stems of other origin:
normative. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.