forfeiture

Concise Oxford English Dictionary © 2008 Oxford University Press:
forfeit /ˈfɔːfɪt/

▶verb (forfeits, forfeiting, forfeited) lose or be deprived of (property or a right or privilege) as a penalty for wrongdoing.

■ lose or give up as a necessary consequence: she forfeited another hour in bed to muck out the horses.

▶noun a fine or penalty for wrongdoing.

■ Law a forfeited item of property, right, or privilege.

■ (forfeits) [treated as sing.] a game in which trivial penalties are exacted for minor misdemeanours.

▶adjective lost or surrendered as a forfeit.

– derivatives
forfeitable adjective,
forfeiter noun,
forfeiture noun.

– origin ME (orig. denoting a crime or transgression): from OFr. forfet, forfait, forfaire ‘transgress’, from for- ‘out’ + faire ‘do’.