decay
From LSJ
English > Greek (Woodhouse)
verb intransitive
waste away: P. and V. μαραίνεσθαι, φθίνειν (Plato), V. ἀποφθίνειν, καταφθίνειν, P. ἀπομαραίνεσθαι (Plato); see pine.
rot, fall to pieces: P. and V. τήκεσθαι (Plato), σήπεσθαι, ἀπορρεῖν, Ar. and P. κατασήπεσθαι.
Met., pass away: P. and V. διαρρεῖν, ἀπορρεῖν, V. φθίνειν.
substantive
As opposed to growth: P. φθορά, ἡ, φθίσις, ἡ.
dankness, mould: P. and V. εὐρώς, ὁ.
rottenness: P. σηπεδών, ἡ.