词根词缀：ag-, agen-, act-, agi-, agit-

【来源及含义】Latin: to set in motion, to hurry, to shake; to drive; to do, to act; to lead, to conduct, to guide

【同源单词】Ab actu ad posse valet illatio, Ab agendo, act, acta, Acta est fabula, acta sanctorum

词根词缀：-ative

【来源及含义】Latin: a suffix; tending to

【同源单词】acceleratory, accumulative, agglomerative, agglutinative, agitative, alterative

词根词缀：-ive

【来源及含义】Latin: a suffix; tending to; of the quality of, inclined to

【同源单词】adhesive, adhesive, advertive, affirmative, aggressive, agitative