Source : Webster's Revised Unabridged Dictionary (1913)

Troll \Troll\, n. [Icel. troll. Cf. {Droll}, {Trull}.] (Scand.
   Myth.)
   A supernatural being, often represented as of diminutive
   size, but sometimes as a giant, and fabled to inhabit caves,
   hills, and like places; a witch.

   {Troll flower}. (Bot.) Same as {Globeflower}
   (a) .