Baccare \Bac*ca"re\, Backare \Bac*ka"re\, interj.
Stand back! give place! -- a cant word of the Elizabethan
writers, probably in ridicule of some person who pretended to
a knowledge of Latin which he did not possess.
[1913 Webster]
Baccare! you are marvelous forward. --Shak.
[1913 Webster]