soffit, 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.].
The under side of the subordinate parts and members of buildings, such as staircases, entablatures, archways, cornices, or the like. See Illust.
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