Source : Webster's Revised Unabridged Dictionary (1913)

Transfix \Trans*fix"\, v. t. [imp. & p. p. {Transfixed}; p. pr.
   & vb. n. {Transfixing}.] [L. transfixus, p. p. of transfigure
   to transfix; trans across, through + figere to fix, fasten.
   See {Fix}.]
   To pierce through, as with a pointed weapon; to impale; as,
   to transfix one with a dart.

Source : WordNet®

transfixed
     adj : having your attention fixated as though by a spell [syn: {fascinated},
            {hypnotized}, {hypnotised}, {mesmerized}, {mesmerised},
            {spellbound}]