Source : Webster's Revised Unabridged Dictionary (1913)

Decease \De*cease"\, v. i. [imp. & p. p. {Deceased}; p. pr. &
   vb. n. {Deceasing}.]
   To depart from this life; to die; to pass away.

         She's dead, deceased, she's dead.        --Shak.

         When our summers have deceased.          --Tennyson.

         Inasmuch as he carries the malignity and the lie with
         him, he so far deceases from nature.     --Emerson.