pervesperi
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
per-vespĕrī: adv.,
I very late in the evening: ad aliquem venire, Cic. Fam. 9, 2, 1.
pervespĕrī, adv., très tard sur le soir : Cic. Fam. 9, 2, 1.