τριττύς

ύος
A. τριττῦς Arist. Ath. 21.3, cf. Harp.:—the number three, Hsch., Phot.:— νικᾶν τριττύν win three victories, Philostr. Gym. 33.
II. sacrifice of three animals, used specially on making solemn oaths,—boar, goat, and ram, Sch.Ar. Pl. 820; bull, boar, and ram, Call. Fr. 403; bull, goat, and boar, Ister 34; two sheep and an ox, Epich. 187 (v. τριττύα).
III. at Athens, a third of the φυλή, IG 12.190.7, 884, al., D. 14.23, Aeschin. 3.30, Arist. Ath. 21.3: in form τριπτύς, IG 12(5).594 (Ceos, iv B. C.).
2. third part of the πρυτάνεις, Arist. Ath. 44.1.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project