τυχικῶς

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

French (Bailly abrégé)

adv.
par hasard, fortuitement.
Étymologie: τύχη.

Russian (Dvoretsky)

τῠχικῶς: случайно Polyb., Diod., Plut.