ABI (1)

a'-bi ('abhi): The name of the mother of King Hezekiah, as given in 2 Kings 18:2. Most naturally explained as a contraction of Abijah ("Yahweh is a father," or "is my father"), found in the parallel passage in 2 Chronicles 29:1. The spelling in the oldest translations seems to indicate that 'abhi is not a copyist's error, but a genuine contracted form. She is spoken of as the daughter of Zechariah, and was of course the wife of Ahaz.

From the International Standard Bible Encyclopedia
Edited by James Orr, published in 1939 by Wm. B. Eerdmans Publishing Co.