καὶ νῦν
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)
so now, Hom., mostly to confirm a general statement by an example, e.g. Il.1.109; ὡς κ. ν. Od.1.35; κ. ν. ἦ τοι 4.151.
German (Pape)
und nun, und jetzt, jetzt auch, Hom. und A., gewöhnlich, wenn für etwas allgemein Ausgesprochenes ein Beispiel beigebracht wird, Il. 1.109, 2.239, Od. 1.35; so eben noch, 9.495.