Mac
From BiblePortal Wikipedia
Webster's Dictionary [1]
A prefix, in names of Scotch origin, signifying son.
Cyclopedia of Biblical, Theological and Ecclesiastical Literature [2]
a frequent initial of Scotch and Irish names, being the Gnelic for son. Those in which it is thus written in full are given below in order. For others, see under the abbreviated form M'- or Mc-.
