. Руча́ться

 ( To Vouch For, Vouch )

 Verb - Present Tense
NRT Only: 1
See also   (Смотрите Та́кже) :
 Proverbs 17:18 NRT
18 Лишь неразу́мный челове́к даёт зало́г,
18 Only unreasonable [man, human, person] [give, gives, giveth] [deposit, pledge],
что́бы руча́ться за друго́го.
[to, so that, in order to, because of] [to vouch for, vouch] [after, around, at, behind, over] [another, the other one].

A man void of understanding striketh hands,
and becometh surety in the presence of his friend.
Proverbs 17:18 KJV