Source : Webster's Revised Unabridged Dictionary (1913)

Revigorate \Re*vig"or*ate\, a. [LL. revigoratus, p. p. of
   revigorare; L. re- + vigor vigor.]
   Having new vigor or strength; invigorated anew. [R.]
   --Southey.

Revigorate \Re*vig"or*ate\, v. t.
   To give new vigor to. [Obs.]