With a great blow he devastated twenty cities from Aroer to the vicinity of Minnith, as far as Abel-keramim. So the Ammonites were subdued before the Israelites.
KJV
And he smote them from Aroer, even till thou come to Minnith, [even] twenty cities, and unto the plain of the vineyards, with a very great slaughter. Thus the children of Ammon were subdued before the children of Israel.
ASV
And he smote them from Aroer until thou come to Minnith, even twenty cities, and unto Abelcheramim, with a very great slaughter. So the children of Ammon were subdued before the children of Israel.