ἐπιτόνιον
ἐπιτόν-ιον, τό,
A). peg or key by which the strings of an instrument are tuned, ἐ. ψαλτηρίου (-ήριον cod.) prob. in : metaph., 10.456d ἡ συντροφία ὥσπερ ἐ. ἐστι τῆς εὐνοίας . 2.3d
2). pitch-pipe for giving the note to a choir, Et.Gud.d. s.v. ἀπότομον.
II). any peg shaped like ἐ. I. , al.; 49.4.26 handle of a tap, turn-cock, Aut. 13.5 , Varro RR 3.5.16 , , 9.8.11 ap. Dig. 19.1.17.8 ; handle of a syringe, Spir. 2.18 .
2). valve or stop in an organ-pipe, . 10.8.5