Source : Webster's Revised Unabridged Dictionary (1913)

Tumulate \Tu"mu*late\, v. i.
   To swell. [Obs.] --Wilkins.

Tumulate \Tu"mu*late\, v. t. [L. tumulatus, p. p. of tumulare to
   tumulate. See {Tumulus}.]
   To cover, as a corpse, with a mound or tomb; to bury. [Obs.]