- Mat Eastern laundry laundered - Material beneath a carpet - Pad placed below a carpet - To lay beneath; to put under. - To raise or support by something laid under; as, to
underlay a cut, plate, or the like, for printing. See Underlay, n., 2. - To put a tap on (a shoe). - To incline from the vertical; to hade; -- said of a
vein, fault, or lode.