Bella-donna.—The deadly nightshade; fair lady.
Belles-lettres.—Polite literature.
Bellum internecinum.—A war of extermination.
Bellum lethale.—A deadly war.
Bene placito.—At pleasure. (Music.)
Benigno numine.—-By the favour of Providence.
Ben trovato.—Well found; an ingenious solution.
Billet-doux.—A love-letter.
Bis dat qui citò dat.—He gives twice who gives promptly.
Bis peccare in bello non licet.—To blunder twice is not allowed in war.