ἀχανίς

From LSJ

Ἀναξαγόρας δύο ἔλεγε διδασκαλίας εἶναι θανάτου, τόν τε πρὸ τοῦ γενέσθαι χρόνον καὶ τὸν ὕπνονAnaxagoras 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

Source

Spanish (DGE)

-ίδος
cajón prob. como medida de áridos, Eust.1854.11, prob. var. de Ar.Ach.108 (v. ἀχάνη).