decay
From LSJ
English > Greek (Woodhouse)
v. intrans.
Waste away: P. and V. μαραίνεσθαι, φθίνειν (Plat.), V. ἀποφθίνειν, καταφθίνειν, P. ἀπομαραίνεσθαι (Plat.); see pine.
Rot, fall to pieces: P. and V. τήκεσθαι (Plat.), σήπεσθαι, ἀπορρεῖν, Ar. and P. κατασήπεσθαι.
Met., pass away: P. and V. διαρρεῖν, ἀπορρεῖν, V. φθίνειν.
subs.
As opposed to growth: P. φθορά, ἡ, φθίσις, ἡ.
Dankness, mould: P. and V. εὐρώς, ὁ.
Rottonness: P σηπεδών, ἡ.
Rust: P. ἰός, ὁ.