The Collaborative International Dictionary of English v.0.48:

Tabefy \Tab"e*fy\, v. t. [imp. & p. p. Tabefied; p. pr. & vb.
   n. Tabefying.] [L. tabere to waste away + -fy: cf. L.
   tabefacere to melt.]
   To cause to waste gradually, to emaciate. [R.] --Harvey.
   [1913 Webster]