Source : Webster's Revised Unabridged Dictionary (1913)

Prunella \Pru*nel"la\, Prunello \Pru*nel"lo\, n. [F. prunelle,
   probably so called from its color resembling that of prunes.
   See {Prune}, n.]
   A smooth woolen stuff, generally black, used for making
   shoes; a kind of lasting; -- formerly used also for
   clergymen's gowns.

Prunello \Pru*nel"lo\, n. [F. prunelle, dim. of prune. See
   {Prune} a plum.]
   A species of dried plum; prunelle.