Bible Dictionaries
Agar

Watson's Biblical & Theological Dictionary

mount Sinai, so called, Galatians 4:24-25 . But this reading is doubtful, many MSS. having the verse, "for this Sinai is a mountain of Arabia." Some critics however contend for the reading of the received text, and urge that Agar, which signifies "a rocky mountain," is the Arabic name for Sinai.

Bibliography Information
Watson, Richard. Entry for 'Agar'. Richard Watson's Biblical & Theological Dictionary. https://www.studylight.org/​dictionaries/​eng/​wtd/​a/agar.html. 1831-2.