(French, bailler). To deliver up.
or bail below. A bail given to the sheriff, after arresting
a person, to guarantee that the defendant will appear in court at any
day and time the court demands. Special bail or bail above, consists of persons who undertake to satisfy all claims made on the
defendant, and to guarantee his rendering himself up to justice when
To bail up.
To disarm before robbing, to force to throw up the arms.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894