Easton's Bible Dictionary (1897)
This Syriac or Chaldee word is found three times in the New Testament (Mark 14:36; Rom. 8:15; Gal. 4:6), and in each case is followed by its Greek equivalent, which is translated “father.” It is a term expressing warm affection and filial confidence. It has no perfect equivalent in our language. It has passed into European languages as an ecclesiastical term, “abbot.”
Smith's Bible Dictionary (1863)
See Ab.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
AB'BA, the Chaldee form of the Hebrew word ab, signifying father. Applied to God in the New Testament by Christ, Mark 14:36, and by Paul, Mark Rom. 8:15; Gal 4:6. The syllable ab, in the sense of "possessed of," "endowed with," frequently occurs in the composition of Hebrew proper names; e. g. Abner, Absalom.
Hitchcock's Bible Names (1869)
father