The Collaborative International Dictionary of English v.0.48:

Arace \A*race"\, v. t. [OE. aracen, arasen, OF. arachier,
   esracier, F. arracher, fr. L. exradicare, eradicare. The
   prefix a- is perh. due to L. ab. See Eradicate.]
   To tear up by the roots; to draw away. [Obs.] --Wyatt.
   [1913 Webster]