The Collaborative International Dictionary of English v.0.48:

Tabour \Ta"bour\, n. & v.
   See Tabor.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Tabor \Ta"bor\, n. [OF. tabor, tabour, F. tambour; cf. Pr.
   tabor, tanbor, Sp. & Pg. tambor, atambor, It. tamburo; all
   fr. Ar. & Per. tamb?r a kind of lute, or giutar, or Per.
   tab[imac]r a drum. Cf. Tabouret, Tambour.] (Mus.)
   A small drum used as an accompaniment to a pipe or fife, both
   being played by the same person. [Written also tabour, and
   taber.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Tabor \Ta"bor\, v. i. [imp. & p. p. Tabored; p. pr. & vb. n.
   Taboring.] [Cf. OF. taborer.] [Written also tabour.]
   1. To play on a tabor, or little drum.
      [1913 Webster]

   2. To strike lightly and frequently.
      [1913 Webster]

WordNet (r) 3.0 (2006):

tabour
    n 1: a small drum with one head of soft calfskin [syn: tabor,
         tabour]