penthouse
noun
[ ˈpɛnthaʊs ]
• a flat on the top floor of a tall building, typically one that is luxuriously fitted.
• an outhouse or shelter with a sloping roof, built on to the side of a building.
Origin:
Middle English pentis (in penthouse (sense 2)), shortening of Old French apentis, based on late Latin appendicium ‘appendage’, from Latin appendere ‘hang on’. The change of form in the 16th century was by association with French pente ‘slope’ and house.
