Architrave

In classical architecture, an architrave (/ˈɑːrkɪtreɪv/; from Italian: architrave "chief beam", also called an epistyle; from Greek ἐπίστυλον epistylon "on the column") is the lintel or beam that rests on the capitals of columns.

The term can also apply to all sides, including the vertical members, of a frame with mouldings around a door or window. The word "architrave" has come to be used to refer more generally to a style of mouldings (or other elements) framing a door, window or other rectangular opening, where the horizontal "head" casing extends across the tops of the vertical side casings where the elements join (forming a butt joint, as opposed to a miter joint).