: to temporarily release (a prisoner) in exchange for security (see securitysense 2a) given for appearance at a later hearing : to release under bail (see bailentry 3 sense 1)
2
: to procure the release of by giving bail (see bailentry 3 sense 2)—often used with out
Her lawyer bailed her out of jail.
3
: to help from a predicament—used with out
His parents are always bailing him out of trouble.bail out impoverished countries
Middle English, custody, bail, from Anglo-French, literally, handing over, delivery, from baillier to give, entrust, hand over, from Latin bajulare to carry a burden, from bajulus porter, carrier
Middle English beil, baile, probably from Old English *begel, *bygel; akin to Middle Dutch beughel iron ring, hilt guard; akin to Old English būgan to bend — more at bow