soffit

noun sof·fit \ˈsä-fət\

Definition of SOFFIT

: the underside of a part or member of a building (as of an overhang or staircase); especially : the intrados of an arch

French soffite, from Italian soffitto, from Vulgar Latin *suffictus, past participle of Latin suffigere to fasten underneath — more at suffix

First Known Use: 1592

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