[1] : The Collaborative International Dictionary of English v.0.48

abigail \ab"igail\, n. the proper name used as an
   appellative.
   a lady's waiting-maid. --pepys.
   1913 webster

         her abigail reported that mrs. gutheridge had a set of
         night curls for sleeping in.             --leslie.
   1913 webster

[2] : Easton's 1897 Bible Dictionary

abigail
   father i.e., "leader" of the dance, or "of joy." 1. the
   sister of david, and wife of jether an ishmaelite 1 chr.
   2:16,17. she was the mother of amasa 2 sam. 17:25.
   
     2. the wife of the churlish nabal, who dwelt in the district
   of carmel 1 sam. 25:3. she showed great prudence and delicate
   management at a critical period of her husband's life. she was
   "a woman of good understanding, and of a beautiful countenance."
   after nabal's death she became the wife of david 1 sam.
   25:14-42, and was his companion in all his future fortunes 1
   sam. 27:3; 30:5; 2 sam. 2:2. by her david had a son called
   chileab 2 sam. 3:3, elsewhere called daniel 1 chr. 3:1.
   

[3] : Hitchcock's Bible Names Dictionary (late 1800's)

abigail, the father's joy

Abigail >> A Words
Abigail, definition of term: Abigail
abigail_pag1.html