UNDERLAY

underlay. Underlay, v.t. underlaid, pret. underlaid, pa. to lay under, strengthen, support

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Un′der‐lay″ (?), v. t. [[AS. underlecgan. See Under, and Lay, v. t.]] 1. 1. To lay beneath; to put under.
2. 2. To raise or support by something laid under; as, to underlay a cut, plate, or the like, for printing. See Underlay, n., 2.
3. 3. To put a tap on (a shoe).