The Collaborative International Dictionary of English v.0.48:

Radicate \Rad"i*cate\, v. t. [imp. & p. p. Radicated
   (r[a^]d"[i^]*k[=a]`t[e^]d); p. pr. & vb. n. Radicating.]
   To cause to take root; to plant deeply and firmly; to root.
   [1913 Webster]

         Time should . . . rather confirm and radicate in us the
         remembrance of God's goodness.           --Barrow.
   [1913 Webster]