LSJ
τό, place of constraint, prison, X. HG 5.44.8 and 14, cf. Harp., who adds Καλλισθένης δὲ ἀνώγεων εἶπεν, ὃ δεῖ μᾶλλον λέγεσθαι ; but correct reading is prob. ἀνάκαιον (preserved in Suid. and AB 98, as used by Boeotians), or Ἀνάκειον, as in D. 45.80, cf. EM 98.32. = αἰδοῖον, Artem. 1.45, Eust. 1968.39, Cat.Cod.Astr. 8(4).133 (pl.).
privy, Gloss. = ἀναγκαιοπότης, Plaut. Rud. 363.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)