ἐκδικέω

And having in a readiness to revenge all disobedience, when your obedience is fulfilled.

And there was a widow in that city; and she came unto him, saying, Avenge me of mine adversary.

Yet because this widow troubleth me, I will avenge her, lest by her continual coming she weary me.

And they cried with a loud voice, saying, How long, O Lord, holy and true, dost thou not judge and avenge our blood on them that dwell on the earth?

For true and righteous are his judgments: for he hath judged the great whore, which did corrupt the earth with her fornication, and hath avenged the blood of his servants at her hand.

Dearly beloved, avenge not yourselves, but rather give place unto wrath: for it is written, Vengeance is mine; I will repay, saith the Lord.