cheater

cheater · noun¹

From cheat + -er. The sense referring to welding hood lenses was inspired by cheaters (plural) as a pair of reading glasses.

cheater · noun²

1. Old French · derived fromeschetour
2. Middle English · inherited fromchetour
3. English todaycheater

From Middle English chetour, a variant of eschetour, from Old French eschetour, escheteur, equivalent to escheat + -er.