Abihail ("father of splendor".)
1.Wife of Rehoboam, king of Judah, daughter, i.e. descendant of Eliab, David's oldest brother. but Keil argues that 2 Chronicles 11:19-20 shows that in 2 Chronicles 11:18 only one wife is named; therefore the sense is "Mahalath the daughter of Jerimoth son of David and of Abihail" (the daughter of Eliab, etc.)
2.Numbers 3:35.
3.1 Chronicles 2:23.
4.1 Chronicles 5:14.
5.Father of Queen Esther, and uncle of Mordecai (Esther 2:15).