Fausset's Bible Dictionary
A city of Asher given to the Levites of Gershom's family: Joshua 21:30; 1 Chronicles 6:74. Hebron is substituted for it in Joshua 19:28. Many manuscripts there read "Abdon"; the Hebrew letters Resh ( ר ) and Daleth ( ד ) are very similar, and therefore often interchanged.
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Fausset, Andrew R. Entry for 'Abdon (2)'. Fausset's Bible Dictionary. https://www.studylight.org/dictionaries/eng/fbd/a/abdon-2.html. 1949.