-iveyoudaoicibaDictgodict[-ive 词源字典]
sufix forming adjectives from verbs, meaning "pertaining to, tending to," in some cases from Old French -if, but usually directly from Latin -ivus. In some words borrowed from French at an early date it has been reduced to -y (as in hasty, tardy).[-ive etymology, -ive origin, 英语词源]