Abihail

The wife of Rehoboam, king of Judah, 2 Chronicles 11.18; the "daughter" - that is here, the descendant-of Eliab, David’s brother.

Source: ATS Bible Dictionary
Abihail

Father of might Numbers 3:35. 1 Chronicles 2:29. 1 Chronicles 5:14. The second wife of King Rehoboam (2 Chronicles 11:18), a descendant of Eliab, David's eldest brother. The father of Esther and uncle of Mordecai (Esther 2:15).

Source: Easton's Bible Dictionary
Abihail

(father of , i.e. possessing, strength ). Father of Zuriel, chief of the Levitical father of Merari, a contemporary of Moses. (Numbers 3:35) (B.C. 1490.) Wife of Abishur. (1 Chronicles 2:29) Son of Huri, of the tribe of Gad. (1 Chronicles 5:14) Wife of Rehoboam. She is called the daughter, i.e. descendant, of Eliab, the elder brother of David. (2 Chronicles 11:18) (B.C. 972.) Father of Esther and uncle of Mordecai. (Esther 2:15; 9:29)

Source: Smith's Bible Dictionary