Cheater
来自Big Physics
wiktionary
From cheat + -er.
From Middle English chetour, a variant of achetour, eschetour, from Old French eschetour, escheteur, equivalent to escheat + -er.
etymonline
cheater (n.)
early 14c., "royal officer in charge of the king's escheats," short for escheater, agent noun from escheat (and compare cheat (v.)). Meaning "dishonest player" is recorded from 1530s.