Smith's Bible Dictionary
Gi'dom. (desolation). A place named only in Judges 20:45. It would appear to have been situated between Gibeah, (Tuliel-el-Ful), and the cliff Rimmon.
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Smith, William, Dr. Entry for 'idom'. Smith's Bible Dictionary. https://www.studylight.org/dictionaries/eng/sbd/i/idom.html. 1901.