Smith's Bible Dictionary (1863)
a word occurring once only— (1 Samuel 18:19) It no doubt denotes that Adriel belonged to a place celled Meholah.
Hastings' Dictionary of the Bible (1898)
MEHOL'ATHITE, THE, a designation of Adriel, son of Barzillai, 1 Sam 18:19, signifying that he came from a place called Mehola.