The Collaborative International Dictionary of English v.0.48:

Inhumate \In*hu"mate\, v. t. [L. inhumatus, p. p. of inhumare to
   inhume; pref. in- in + humare to cover with earth. See
   Humation, and cf. Inhume.]
   To inhume; to bury; to inter. --Hedge.
   [1913 Webster]