動(dòng)詞 vouch:

1. give personal assurance; guarantee
2. give surety or assume responsibility
   同義詞：guarantee
3. summon (a vouchee) into court to warrant or defend a title
4. give supporting evidence

1. I can vouch for his honesty.
   我可以為他的誠(chéng)實(shí)做擔(dān)保。
2. The experts have vouched for the painting's authenticity.
   專(zhuān)家已經(jīng)確認(rèn)了該畫(huà)是真跡。

vouch

v.（動(dòng)詞）
vouched,vouch.ing,vouch.es
v.intr.（不及物動(dòng)詞）
To give personal assurances; give a guarantee:
擔(dān)保，保證：給予個(gè)人擔(dān)保；給予保證：
例句：
vouch for an old friend`s trustworthiness.
擔(dān)保一個(gè)老朋友可信任

To constitute supporting evidence; give substantiation:
作證，證明：構(gòu)成支持的證據(jù)；給予證實(shí)：
例句：
a candidate whose strong record vouches for her ability.
候選人良好的記錄證實(shí)了她的能力

v.tr.（及物動(dòng)詞）
To substantiate by supplying evidence; prove:
證實(shí)：用提供證據(jù)來(lái)證實(shí)；證明：
例句：
charges that he could not vouch.
對(duì)他的不能證實(shí)的控告

Law To summon as a witness to give warranty of title.
【法律】 傳喚…出庭作證：作為證人傳喚以給予權(quán)利的保證
To refer to (an authority, for example) in support or corroboration; cite.
引證：引用（如一個(gè)權(quán)威）來(lái)證實(shí)或支持；引證
To assert; declare.
斷言；宣稱(chēng)
n.Obsolete （名詞）【廢語(yǔ)】
A declaration of opinion; an assertion.
證實(shí)，斷言：意見(jiàn)的宣布；斷言

來(lái)源：
Middle English vouchen [to summon to court, warrant]
中古英語(yǔ) vouchen [傳喚出庭]
from Anglo-Norman voucher
源自 英法語(yǔ) voucher
probably from Vulgar Latin *votic3re
可能源自 俗拉丁語(yǔ) *votic3re
alteration of Latin vocit3re [frequentative of] voc3re [to call] * see wek w-
拉丁語(yǔ) vocit3re的變化 [] voc3re的重復(fù)動(dòng)詞 [召喚] *參見(jiàn) wek w-