English

jetfoil

From jet + foil, from a Boeing trademark.

A compound of jet + foil

Proto-Indo-European *(H)yeh₁- ‘to throw’

…

Latin iactus ‘a throwing, a throw’

Vulgar Latin *iectus

Old French get

French jet ‘spurt’

English jet

Proto-Italic *foljom

…

Late Latin folia ‘a leaf’

Old French fueille ‘plant leaf’

Middle French fueille

Middle English foyle ‘a leaf’

English foil

Today it means

noun A passenger-carrying hydrofoil propelled by water jets.

Language periods are conventional ranges, not dates for this word.