θνήσκω
Etym. The Root is ΘΑΝ, found in aor2 θανεῖν, etc.
Etym. The form τεθνειώς appears as a variant reading at Iliad 17.161
I. "to die, be dying", in aor2 and perf. "to be dead", Hom., etc.; the pres. sometimes takes a perf. sense, θνήσκουσι γάρ, for τεθνήκασι, Soph., Eur.
2. often used like a pass. Verb, χερσὶν ὑπ᾽ Αἴαντος θανέειν "to fall by" his "hand, be slain by" him, Il., etc.:—note the phrase of Dem., τεθνᾶσι τῶι δέει τοὺς τοιούτους, where τεθνᾶσι τῶι δέει must be taken as a single Verb, "are in mortal fear of".
II. metaph. of things, "to die, perish", Aesch., Soph., etc.