κάτθανον
From LSJ
ἐπάμεροι· τί δέ τις; τί δ' οὔ τις; σκιᾶς ὄναρ ἄνθρωπος → Neverlasting: What is a somebody? What is a nobody? You are a dream of a shadow | Creatures of a day. What is a someone, what is a no one? Man is the dream of a shade.
French (Bailly abrégé)
v. καταθνῄσκω.
Greek Monotonic
κάτθᾰνον: Επικ. αντί κατ-έθανον, αόρ. βʹ του καταθνῄσκω.