'Soffit' definitions:
Definition of 'soffit'
(from WordNet)
noun
The underside of a part of a building (such as an arch or overhang or beam etc.)
Definition of 'Soffit'
From: GCIDE
- Soffit \Sof"fit\, n. [It. soffitta, soffitto, fr. soffiggere to hide, properly, to fix or fasten under, L. suffigere to fasten beneath or below; sub under, beneath + figere to fix, faste: cf. F. soffite.] (Arch.) The under side of the subordinate parts and members of buildings, such as staircases, entablatures, archways, cornices, or the like. See Illust. of Lintel. [1913 Webster]