Noah Webster's Dictionary 1. (n.) The lower division of an entablature, or that part which rests immediately on the column, esp. in classical architecture. See Column. 2. (n.) The group of moldings, or other architectural member, above and on both sides of a door or other opening, especially if square in form.

Multi-Version Concordance Architrave (1 Occurrence) 1 Kings 7:5 And all the doors and posts were square, with an architrave; and window was against window in three ranks. (DBY)