ἄνικτον
From LSJ
καὶ ποιήσας φραγέλλιον ἐκ σχοινίων πάντας ἐξέβαλεν ἐκ τοῦ ἱεροῦ, τά τε πρόβατα καὶ τοὺς βόας → And having made a whip out of cords he drove all from the temple sheep and cattle
Spanish (DGE)
-ου, τό
lugar inaccesible, impenetrable οὔτε ἐπ' (ἀ)νίκτῳ οὔτε πάτῳ ICr.2.19.7.20 (Falasarna, Creta IV a.C.).