FOIL
The origin and history of FOIL.
Etymology
The "prevent" and "thin metal sheet" senses come from separate Old French roots meaning "to trample" and "leaf" respectively — both eventually collapsed into the single English spelling "foil."
The origin and history of FOIL.
The "prevent" and "thin metal sheet" senses come from separate Old French roots meaning "to trample" and "leaf" respectively — both eventually collapsed into the single English spelling "foil."