The Collaborative International Dictionary of English v.0.48:

Quilt \Quilt\, n. [OE. quilte, OF. cuilte, L. culcita ? bed,
   cushion, mattress. Cf. 2d Counterpoint, Cushion.]
   Anything that is quilted; esp., a quilted bed cover, or a
   skirt worn by women; any cover or garment made by putting
   wool, cotton, etc., between two cloths and stitching them
   together; also, any outer bed cover.
   [1913 Webster]

         The beds were covered with magnificent quilts.
                                                  --Arbuthnot.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Quilt \Quilt\, v. t. [imp. & p. p. Quilted; p. pr. & vb. n.
   Quilting.]
   1. To stitch or sew together at frequent intervals, in order
      to confine in place the several layers of cloth and
      wadding of which a garment, comforter, etc., may be made;
      as, to quilt a coat. --Dryden.
      [1913 Webster]

   2. To wad, as a garment, with warm soft material.
      [1913 Webster]

   3. To stitch or sew in lines or patterns.
      [1913 Webster]

WordNet (r) 3.0 (2006):

quilt
    n 1: bedding made of two layers of cloth filled with stuffing
         and stitched together [syn: quilt, comforter,
         comfort, puff]
    v 1: stitch or sew together; "quilt the skirt"
    2: create by stitching together