Fausset's Bible Dictionary
("plain of the vineyards"): Judges 11:33 margin. An Ammonite village, six miles from Rabbath Ammon, or Philadelphia; the limit of Jephthah's pursuit of the Ammonites. Ruins named Abila still are found in this region. De Sauley met with a Beit el Kerm, "house of the vine," N. of Kerak, possibly identical with Abel-Ceramim.
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Fausset, Andrew R. Entry for 'Abel-Carmaim'. Fausset's Bible Dictionary. https://www.studylight.org/dictionaries/eng/fbd/a/abel-carmaim.html. 1949.