Architrave

(1) In classical architecture, a simple, flat, structural lintel spanning an opening in a wall, it is the lowest part of an entablature resting upon the abacus (flat slab) on the capital of a column.

(2) The moulding around the exterior of an arch or the various parts surrounding a door or window. An eared architrave has the surround turning outwards, then upwards before returning horizontally along the top of the opening it is framing.