*ag-
原始印欧语根,意为“驱动,拉出或向外移动”。
它构成了以下词语的全部或部分: act; action; active; actor; actual; actuary; actuate; agency; agenda; agent; agile; agitation; agony; ambagious; ambassador; ambiguous; anagogical; antagonize; apagoge; assay; Auriga; auto-da-fe; axiom; cache; castigate; coagulate; cogent; cogitation; counteract; demagogue; embassy; epact; essay; exact; exacta; examine; exigency; exiguous; fumigation; glucagon; hypnagogic; interact; intransigent; isagoge; litigate; litigation; mitigate; mystagogue; navigate; objurgate; pedagogue; plutogogue; prodigal; protagonist; purge; react; redact; retroactive; squat; strategy; synagogue; transact; transaction; variegate。
这是一个假设的源头,其存在的证据由以下语言提供:希腊语 agein “引导,指引,驱动,带走”, agon “集会,比赛”, agōgos “领袖”, axios “价值,有价值,重量相等”; 梵语 ajati “驱动”, ajirah “移动的,活跃的”; 拉丁语 actus “行动; 驱动,冲动,启动; 戏剧中的一部分”; agere “启动,驱动,推动”,因此“做,执行”; agilis “敏捷,迅速”; 古诺尔斯语 aka “驱动”; 中古爱尔兰语 ag “战斗”。