ὑπνώδης
From LSJ
χωρίον ἔνθα οὐ προσβατὸν θανάτῳ → a spot where it is not accessible to death, a place where was no point accessible by death, a place where death was forbidden to set foot
English (LSJ)
ες,
A drowsy, E.HF1049 (lyr.), Arist.Phgn.808a28, cf. Pr.909b37 (Comp.); ἕξις Pl.R.404a. 2 asleep, ὑ. εἶδεν ὄναρ Epigr.Gr.774.1 (Priene, iv/iii B.C.). 3 inducing sleep, Thphr. HP9.11.5.
German (Pape)
[Seite 1207] ες, von schläfriger Art, schläfrig; Eur, Herc. F. 1050; ἕξις Plat. Rep. III, 404 a.