Σάϊς
From LSJ
τοῖς οἰκείοις βουλεύμασιν ἁλίσκεσθαι → hoist by one's own petard, hoist with one's own petard, hoist on one's own petard, hoisted by one's own petard, be hoist with one's own petard
French (Bailly abrégé)
εως, ion. ϊος (ἡ) :
dat. ϊ ou ει, acc. ϊν;
Saïs, ville d'Égypte.
Russian (Dvoretsky)
Σάϊς: εως, ион. ϊος ἡ Саис (древняя столица Нижнего Египта) Her., Plat., Plut.
