κλᾷθρον
From LSJ
οἵ γε καὶ ἐν τῷ παρόντι ἀντιπάλως μᾶλλον ἢ ὑποδεεστέρως τῷ ναυτικῷ ἀνθώρμουν → whose navy, even as it was, faced the Athenian more as an equal than as an inferior
English (LSJ)
A v. κλεῖθρον. κλαιόν· τὸ κανοῦν, Hsch. κλᾱΐς, gen.κλᾱῖδος and κλᾱΐδος, ἁ, Dor. for κληΐς, κλείς. κλάϊστρον, τό, Dor. for κλεῖστρον (q.v.).