ἀϊδής
From LSJ
διφθέραι σταδιαῖαι τοῖς μεγέθεσιν → hides a stade in size, hides fastened together so as to cover a place an entire stadium in extent
English (LSJ)
ές, (ἀ- priv., Ϝιδεῖν)
A unseen, Hes.Sc.477, Pl.Phd.79a, al.; secret, γλῶσσα B.12.209. II Act., blind, IG4.951.125 (Epid.), dub. in Thgn.1310.
German (Pape)
[Seite 51] ές, unsichtbar, ποιεῖν Hes. Sc. 477.