advocate
n.
mid-14c., "one whose profession is to plead cases in a court of justice," a technical term from Roman law, from Old French avocat "barrister, advocate, spokesman," from Latin advocatus "one called to aid; a pleader, advocate," noun use of past participle of advocare "to call" (as witness or advisor) from ad- "to" (see ad-) + vocare "to call," related to vocem (see voice, n.). Also in Middle English as "one who intercedes for another," and "protector, champion, patron." Feminine forms advocatess, advocatrice were in use in 15c.
v.
1640s, from advocate, n.. Related: Advocated; advocating; advocation.
〔李〕[ad-=to 向；voc=to call 喊；-ate n.=person 人 ⇒“a person who calls to 向…呼喊的人”→] n. person who speaks in favour 拥护者，提倡者
〔蒋〕[ad-加强意义，voc声音→说话，-ate动词后缀;’大声说”，’大声叫喊”→极力主张] 拥护，提倡，鼓吹，辩护;[-ate表示人] 拥护者，提倡者，鼓吹者，主张者
〔李〕[ad-=to对；voc=to call叫喊；-ate n.=person人→“person who calls to another's aid对他人呼喊助威者”→]Ⅰn. person whopleads in favor of another;defender辩护者；拥护者