The Collaborative International Dictionary of English v.0.48:

Intenerate \In*ten"er*ate\, v. t. [imp. & p. p. Intenerated;
   p. pr. & vb. n. Intenerating.] [Pref. in- in + L. tener
   soft, tender. See Tender, a.]
   To make tender or sensitive; to soften.
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         Fear intenerates the heart.              --Bp. Hall.
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         So have I seen the little purls of a stream . . .
         intenerate the stubborn pavement.        --Jer. Taylor.
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The Collaborative International Dictionary of English v.0.48:

Intenerate \In*ten"er*ate\ ([i^]n*t[e^]n"[~e]r*[asl]t), a.
   Made tender or soft; softened. [Obs.]
   [1913 Webster]