The Collaborative International Dictionary of English v.0.48:

Commensurate \Com*men"su*rate\, v. t. [imp. & p. p.
   Commensurated; p. pr. & vb. n. Commensurating.] [Pref.
   com- + mensurate.]
   1. To reduce to a common measure. --Sir T. Browne.
      [1913 Webster]

   2. To proportionate; to adjust. --T. Puller
      [1913 Webster]