Webster's Dictionary 
(n.) A kind of plum cake.
Cyclopedia of Biblical, Theological and Ecclesiastical Literature 
the Same as Papa (q.v.). Baba a Turkish impostor who lived in the early half of the 13th century, appeared in the city of Amasia in 1240, and required his disciples to adopt as their profession of faith that there existed one God, and that Baba was his envoy. The Mohammedans attempted to arrest Baba, but he escaped them, and collected an army with which he sustained several engagements against them; but finally, by the aid of the Franks, the Mussulmans drove him out and dispersed his sect. See Hoefer, Nouv. Biog. Generale, s.v.