forfeit
Pronunciation: /ˈfɔːfɪt/
verb ( forfeits, forfeiting, forfeited)
noun
adjective

Origin:
Middle English (originally denoting a crime or transgression, hence a fine): from Old French forfet, forfait, past participle of forfaire 'transgress', from for- 'out' (from Latin foris 'outside') + faire 'do' (from Latin facere)

Spelling help
Remember that forfeit is spelled with the e before the i.

you may forfeit your entire income.