2. underlay to provide with something laid underneath, as for support.
3. underlay to extend across the bottom of.
4. (n.)underlay something underlaid.
5. underlay paper put under type or cuts to bring them to the proper height for printing.
Etymology: (bef. 900)
Definition of 'underlay'
Princeton's WordNet
1. (verb)carpet pad, rug pad, underlay, underlayment a pad placed under a carpet
2. (verb)underlay raise or support (the level of printing) by inserting a piece of paper or cardboard under the type "underlay the plate"
3. (verb)underlay put (something) under or beneath "They underlaid the shingles with roofing paper"
4. (verb)underlay provide with a base, support, lining, or backing "underlay the boards with joists"
Definition of 'underlay'
Webster Dictionary
1. (noun)underlay to put a tap on (a shoe)
2. (noun)underlay the inclination of a vein, fault, or lode from the vertical; a hade; -- called also underlie
3. (noun)underlay 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
4. (verb)underlay to lay beneath; to put under
5. (verb)underlay to raise or support by something laid under; as, to underlay a cut, plate, or the like, for printing. See Underlay, n., 2
6. (verb)underlay to incline from the vertical; to hade; -- said of a vein, fault, or lode
Definitions of underlay 
