ὑπεισδύομαι
From LSJ
English (LSJ)
Med. with aor. 2 Act. ὑπεισέδυν,
A get in secretly, slip or steal in, Hdt.1.12 (ὑπεκδύς is prob. cj.); come or go in gradually, Arist.GC325b4:—Act. pres. ὑπεισδύνω, EM290.13.
German (Pape)
[Seite 1185] (s. δύω), mit aor. II. u. perf. act., darunter oder heimlich hineingehen, ὑπεισέδυ Her. 1, 12.