Source : Webster's Revised Unabridged Dictionary (1913)

Inthrall \In*thrall"\, v. t. [imp. & p. p. {Inthralled}; p. pr.
   & vb. n. {Inthralling}.] [Cf. {Enthrall}.] [Written also
   {inthral}, {enthral}, and {enthrall}.]
   To reduce to bondage or servitude; to make a thrall, slave,
   vassal, or captive of; to enslave.

         She soothes, but never can inthrall my mind. --Prior.