(1):

(n.) Injury; wrong; mischief.

(2):

(n.) To lose, or lose the right to, by some error, fault, offense, or crime; to render one's self by misdeed liable to be deprived of; to alienate the right to possess, by some neglect or crime; as, to forfeit an estate by treason; to forfeit reputation by a breach of promise; - with to before the one acquiring what is forfeited.

(3):

(v. i.) To fail to keep an obligation.

(4):

(n.) A thing forfeit or forfeited; what is or may be taken from one in requital of a misdeed committed; that which is lost, or the right to which is alienated, by a crime, offense, neglect of duty, or breach of contract; hence, a fine; a mulct; a penalty; as, he who murders pays the forfeit of his life.

(5):

(n.) Lost or alienated for an offense or crime; liable to penal seizure.

(6):

(v. i.) To be guilty of a misdeed; to be criminal; to transgress.

(7):

(n.) Something deposited and redeemable by a sportive fine; - whence the game of forfeits.

(8):

(p. p. / a.) In the condition of being forfeited; subject to alienation.