gittern

A small, quill-plucked, gut-strung musical instrument, most commonly with three to four strings in doubles courses; it is a flat-backed predecessor of the guitar, and it originated around the 13th century, coming to Europe via Moorish Spain

Now they can no more hear thy ghittern’s tune, / For venturing syllables that ill beseem / The quiet glooms of such a piteous theme.

To play on the gittern.

c. 1639-1640. John Milton, The Cambridge Manuscript; Excerpts from pages 35-41, as Reprinted in David Masson, editor & author, The Life of John Milton: Narrated in Connection with the Political, Ecclesiastical, and Literary History of his Time; Volume II, London and New York.: MacMillan and Co, 1871, page 109. … [E]ach evening every one with mistress, or Ganymede, glitterning along the streets, or solacing on the banks of Jordan, or down the stream.