Where does “face piece” come from?

face piece (English) comes from English piece, from Middle English pece, from Old French piece, from Vulgar Latin pettia, from Latin pettia, from Gaulish pettyā, from Proto-Celtic kʷezdis — piece, portion.

face piece (English): The part of a respirator or gas mask that covers the nose, mouth, and sometimes the eyes

Definitions

  1. The part of a respirator or gas mask that covers the nose, mouth, and sometimes the eyes

Ancestry of “face piece”, step by step

face piece traces back through two separate lines of ancestry.

via English piece

StepLanguageWordMeaning
1EnglishpieceA part of a larger whole, usually in such a form...
2Middle Englishpecepiece; morsel; bit
3Old Frenchpiecepiece, bit, part; circa 1170, Chrétien de Troyes
4Vulgar Latinpettiapiece, portion
5Latinpettiapiece, portion
6Gaulishpettyā
7Proto-Celtickʷezdispiece, portion

via English face

StepLanguageWordMeaning
1EnglishfaceThe front part of the head of a human or other...
2Middle Englishfaceface; Alternative form of fass
3Old Frenchfaceface
4Late Latinfacia
Every word from Proto-Celtic kʷezdis
face piece — Etymology, Origin & Word History | Etymology Explorer