ἄνικτον

From LSJ

ἐὰν ἃ τοῖς ἄλλοις ἐπιτιμῶμεν, αὐτοὶ μὴ δρῶμεν → avoid doing what you would blame others for doing

Source

Spanish (DGE)

-ου, τό
lugar inaccesible, impenetrable οὔτε ἐπ' (ἀ)νίκτῳ οὔτε πάτῳ ICr.2.19.7.20 (Falasarna, Creta IV a.C.).