LSJ
Ep. 3 pl. plpf. Pass., πᾶσαι γὰρ [πύλαι] ἐπῴχατο all were shut to, Il. 12.340 (= ἐπικεκλιμέναι ἦσαν, ἐπέκειντο, Aristarch., who derived it from ἐποίγω, prob. rightly, cf. προσοίγνυμι ; = ἐπωχλισμέναι ἦσαν were bolted, Apollon.Soph. Lex., reading ἐπώχατο ; πάσας γὰρ ἐπῴχετο Zenod., vulg.).
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)