Un`der*lay" (?), v. t. [AS. underlecgan. See Under, and Lay, v. t.]
1.
To lay beneath; to put under.
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.
To put a tap on (a shoe).
[Prov. Eng.]
© Webster 1913.
Un`der*lay", v. i. Mining
To incline from the vertical; to hade; -- said of a vein, fault, or lode.
© Webster 1913.
Un"der*lay` (?), n.
1. Mining
The inclination of a vein, fault, or lode from the vertical; a hade; -- called also underlie.
2. Print.
A thickness of paper, pasteboard, or the like, placed under a cut, or stereotype plate, or under type, in the from, to bring it, or any part of it, to the proper height; also, something placed back of a part of the tympan, so as to secure the right impression.
© Webster 1913.