καταιόνησις
From LSJ
εἰ πάλιν ἔστι γενέσθαι, ὕπνος σ' ἔ̣χει οὐκ ἐπὶ δηρόν, εἰ δ' οὐκ ἔστιν πάλιν ἐλθεῖν, αἰώ̣νιος ὕπνος → if it is possible for you to be born again, you will fall asleep, briefly; if it is not possible to return — it would be eternal sleep
English (LSJ)
εως, ἡ, = foreg., D.Chr.17.6, M.Ant.5.9, Poll.4.180, Gal.12.675; αἱ κατὰ κεφαλῆς κ. Ath.1.24d.
German (Pape)
[Seite 1350] ἡ, das Daraufgießen, Begießen; Medic.; M. Ant. 5, 7.