(so Hdn. Gr. 2.936, -ῦς and -ύς freq. in codd.), ύος, ὁ, acc. ἰχθύν Pi. Fr. 306, cf. Hdn. Gr. 1.416, Choerob. in Theod. 1.383, in late Poets also ἰχθύα AP 9.227 (Bianor), Theoc. 21.45; voc. ἰχθύ Erinna 1, CratesCom. 14; pl. ἰχθύες Pl. Phd. 109e, etc., ἰχθῦς Alex. 261.9, acc. ἰχθύας, contr. ἰχθῦς Od. 5.53, both forms being used in Com., -ῦς Ar. Ra. 1068, Archipp. 29, -ύας Antiph. 68.12, Ephipp. 21; codd. vary in Arist. HA 564b19, PA 644a21, D.S. 5.3, Str. 8.3.19, etc. ; -ῦς SIG 997.1 (Smyrna, perh. i BC); -ύας BGU 1123.9 (Aug.), etc. ; dual ἰχθῦ Antiph. 194.15:
fish, ὠμηστής Il. 24.82, cf. 21.122, al., cf. Hes. Op. 277, Hdt. 2.93, S. Aj. 1297, etc. ; prov., ἀφωνότερος τῶν ἰχθύων Luc. Gall. 1, cf. S.E. M. 2.18; metaph, of a stupid fellow, Plu. 2.975b. in pl., οἱ ἰχθύες the fish-market at Athens, παρὰ τοὺς ἰχθῦς Ar. Ra. 1068; ἐν τοῖς ἰχθύσι Id. V. 789, Antiph. 125.1. pl., the constellation Pisces, Eudox. ap. Hipparch. 1.2.3; ἰ. Διός Porph. Antr. 22. (ἱχθύς Att. acc. to Gell. 2.3.2.) [υ in disyll. cases, nom. -υς Il. 21.127, Damox. 2.20, Archestr. Fr. 52 (ἰχθῦς οὖσα shd. be read for ἰχθὺς ἐοῦσα in Matro Conv. 35), acc. -υν Pherecr. 120, Antiph. 166.7, Archestr. Fr. 28, but -υν Theoc. 21.49, and apptly. Pi. l.c. ; υ in trisyll. cases and in all compds.] (Cf. Lith. žuvìs, Arm. jukn, ΄fish΄.)