κύσαι
From LSJ
Ἀναξαγόρας δύο ἔλεγε διδασκαλίας εἶναι θανάτου, τόν τε πρὸ τοῦ γενέσθαι χρόνον καὶ τὸν ὕπνον → Anaxagoras used to say that we have two teachers for death: the time before we were born and sleep | Anaxagoras said that there are two rehearsals for death: the time before being born and sleep
English (LSJ)
[ῠ], Ep. κύσσαι, aor. inf. of κυνέω:—but κῦσαι of κύω.
Greek (Liddell-Scott)
κύσαι: ῠ, Ἐπικ. κύσσαι, ἀπαρ. ἀορ. τοῦ κυνέω· ἀλλὰ κῦσαι τοῦ κύω.