δραστοσύνη
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)
A v. δρηστοσύνη.
Greek (Liddell-Scott)
δραστοσύνη: ἴδε ἐν λ. δρηστοσύνη.
Russian (Dvoretsky)
δραστοσύνη: эп.-ион. δρηστοσύνη (ῠ) ἡ служение, служба, работа Hom.