Usage: 3 forms in 3 verses
Form Translated As     In Verse(s)
εξόλλυσιν totally ruins LXX.Prov.15.27
εξολλύει totally ruins LXX.Prov.11.17
εξολείται shall be totally ruined LXX.Prov.10.31

Liddell-Scott-Jones

ἐξόλλυμι (exollumi) to totally ruin G:V

ἐξόλλυμι

and ἐξολλύω, future -ολῶ: aorist 1 ἐξώλεσα: perfect ἐξολώλεκα:— destroy utterly, τοὺς Ζεὺς ἐξολέσειε [Refs 8th c.BC+]

__II middle, with perfect [Refs]perish utterly, [Refs 5th c.BC+]