IPA: /ˈfɔːrfɪtər/
KK: /ˈfɔrˌfɪtər/
A person who loses something, usually as a penalty for not following rules or agreements.
The forfeiter lost their deposit because they canceled the reservation too late.
Forfeiter is formed from "forfeit" (from Old French *forfait*, meaning to give up or lose) and "-er" (meaning a person who). A forfeiter is a person who gives up or loses something, typically as a penalty.
Think of someone who 'gives up' something ('forfeit') — the '-er' just means a person. A forfeiter is someone who loses something.