词根：-act-, -ag-, -ig-

【词根含义】：做,行动; 驾驶,引导

【词根来源】：来源于拉丁语动词ago, agere, egi, actus(行动)。

【同源单词】：act, acting, action, activate, active

词根：-radi-, -radio-

【词根含义】：射线,放射

【词根来源】：-radi-和-radio-来源于拉丁语名词rad.ius, rad.i, m(射线,放射)。

【同源单词】：radiant, radiate, radius, ray, radio

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