The Collaborative International Dictionary of English v.0.48:

Diaper \Di"a*per\, v. i.
   To draw flowers or figures, as upon cloth. "If you diaper on
   folds." --Peacham.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Diaper \Di"a*per\ (d[imac]"[.a]*p[~e]r), n. [OF. diaspre,
   diapre, diaspe, sort of figured cloth, It. diaspro jasper,
   diaspo figured cloth, from L. jaspis a green-colored precious
   stone. See Jasper.]
   1. Any textile fabric (esp. linen or cotton toweling) woven
      in diaper pattern. See 2.
      [1913 Webster]

   2. (Fine Arts) Surface decoration of any sort which consists
      of the constant repetition of one or more simple figures
      or units of design evenly spaced.
      [1913 Webster]

   3. A towel or napkin for wiping the hands, etc.
      [1913 Webster]

            Let one attend him with a silver basin, . . .
            Another bear the ewer, the third a diaper. --Shak.
      [1913 Webster]

   4. An infant's breechcloth.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Diaper \Di"a*per\, v. t.
   1. To ornament with figures, etc., arranged in the pattern
      called diaper, as cloth in weaving. "Diapered light." --H.
      Van Laun.
      [1913 Webster]

            Engarlanded and diapered
            With in wrought flowers.              --Tennyson.
      [1913 Webster]

   2. To put a diaper on (a child).
      [1913 Webster]

WordNet (r) 3.0 (2006):

diaper
    n 1: garment consisting of a folded cloth drawn up between the
         legs and fastened at the waist; worn by infants to catch
         excrement [syn: diaper, nappy, napkin]
    2: a fabric (usually cotton or linen) with a distinctive woven
       pattern of small repeated figures