Word Origin & History
penthouse
M.E. pendize, c.1325, from Anglo-Fr. pentiz, aphetic of O.Fr. apentis "attached building, appendage," from M.L. appendicium, from L. appendere "to hang." Modern spelling is from 1530, by folk etymology influence of M.Fr. pente "slope," and Eng. house (the meaning at that time was "attached building with a sloping roof or awning"). Originally a simple structure (M.E. homilies describe Jesus' birthplace in the manger as a "penthouse"); meaning "apartment or small house built on the roof of a skyscraper" first recorded 1921, from which time dates its association with luxury.