Ἰσθμ-οῖ · Isthm-oi — LSJ
loc. of Ἰσθμός II.2, Ar. Fr. 14D.:—usu. on the Isthmus: at the Isthmian games, IG 1(2).77, Pi. O. 13.98, Lys. 19.63, Timocr. 1.10; also ἐν Ἰσθμοῖ Simon. 125 cod. [Ἱσθ- IG 1(2).77, 829; Ἰθμοῖ SIG 36A (Delph., iv B.C.), but Ἰσθμοῖ ib.B (Olymp., v B.C.); cf. Ἰσθμός.]