The Collaborative International Dictionary of English v.0.48:

Nomadize \Nom"ad*ize\, v. i. [imp. & p. p. Nomadized; p. pr. &
   vb. n. Nomadizing.]
   To lead the life of a nomad; to wander with flocks and herds
   for the sake of finding pasturage.
   [1913 Webster]

         The Vogules nomadize chiefly about the Rivers Irtish,
         Obi, Kama, and Volga.                    --W. Tooke.
   [1913 Webster]