The Collaborative International Dictionary of English v.0.48:

Engird \En*gird"\, v. t. [imp. & p. p. Engirded or Engirt
   (?); p. pr. & vb. n. Engirding.] [Pref. en- + gird. Cf.
   Ingirt.]
   To gird; to encompass. --Shak.
   [1913 Webster]