orpharion

from The Century Dictionary.

• noun A large variety of lute, used in the sixteenth and seventeenth centuries, having six to nine pairs of metal strings. It was played by means of a plectrum. Also orpheoreon.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Mus.) An old instrument of the lute or cittern kind.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun music A musical instrument of the Renaissance, part of the cittern family, whose metal strings are tuned like a lute's and plucked with the fingers.