Gittern

from WordNet (r) 3.0 (2006)

gittern
    n 1: a 16th century musical instrument resembling a guitar with
         a pear-shaped soundbox and wire strings [syn: {cittern},
         {cithern}, {cither}, {citole}, {gittern}]

from The Collaborative International Dictionary of English v.0.48

Gittern \Git"tern\ (g[i^]t"t[~e]rn), n. [OE. giterne, OF.
   guiterne, ultimately from same source as E. guitar. See
   {Guitar}, and cf. {Cittern}.]
   An instrument like a guitar. "Harps, lutes, and giternes."
   --Chaucer.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Gittern \Git"tern\, v. i.
   To play on gittern. --Milton.
   [1913 Webster]

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