The Collaborative International Dictionary of English v.0.48:

Repedation \Rep"e*da"tion\ (r?p`?-da"sh?n), n. [L. repedare to
   step back; pref. re- re- + pes, pedis, foot.]
   A stepping or going back. [Obs.] --Dr. H. More.
   [1913 Webster]