προαπόλλυσθαι

From LSJ

δειλὴ δ' ἐν πυθμένι φειδώthrift in the lees is worthless

Source

Greek > English (Woodhouse Verbs Reversed)

(see also: προαπόλλυμαι) be destroyed beforehand

Lexicon Thucydideum

prius perire, to perish first, 5.61.5, 6.77.2.