Dictionary.com's Word of the Year is...
Swedish pop music group formed 1972, the name dates from 1973 and is an acronym from the first names of the four band members: Anni-Frid Lyngstad, Björn Ulvaeus, Benny Andersson, Agnetha Fältskog.
title of honor, from Latin abba, from Greek abba, from Aramaic abba "the father, my father," emphatic of abh "father."
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."