ἀφριστής
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)
οῦ, ὁ, foamer, Sch.Il.1.535.
Greek (Liddell-Scott)
ἀφριστής: -οῦ, ὁ, ὁ παράγων ἀφρόν, ὁ ἀφρίζων, Μανάσσ. Χρον. 302, Σχολ. Βενετ. Β. εἰς Ἰλ. Ι. 539.