The Collaborative International Dictionary of English v.0.48:

itinerate \i*tin"er*ate\ ([-i]*t[i^]n"[~e]r*[=a]t). v. i. [imp.
   & p. p. Itinerated ([-i]*t[i^]n"[~e]r*[=a]`t[e^]d); p. pr.
   & vb. n. Itinerating ([-i]*t[i^]n"[~e]r*[=a]`t[i^]ng).]
   [LL. itineratus, p. p. of itinerari, itinerare. See
   Itinerant.]
   To wander without a settled habitation; to travel from place
   or on a circuit, particularly for the purpose of preaching,
   lecturing, etc.
   [1913 Webster]

WordNet (r) 3.0 (2006):

itinerate
    v 1: travel from place to place, as for work; "an itinerating
         merchant"