Definition of: forfeit

(fôr′fit) v.t.
To incur the loss of through some fault, omission, error, or offense. [<noun]
—adjective Forfeited.
—noun
1. A thing lost by way of penalty for some default.
2. plural Any game in which some piece of personal property is taken as a fine for a breach of the rules, and is redeemable by some playful penalty; also, the articles so taken.
3. Forfeiture. [<OF forfait a misdeed <Med. L foris factum <foris outside + factum. See FACT.]
—for′feit·a·ble adjective
—for′·feit·er noun