The Collaborative International Dictionary of English v.0.48:

Doxologize \Dox*ol"o*gize\, v. i. [imp. & p. p. Doxologized;
   p. pr. & vb. n. Doxologizing.]
   To give glory to God, as in a doxology; to praise God with
   doxologies.
   [1913 Webster]