Source : Webster's Revised Unabridged Dictionary (1913)

Spinny \Spin"ny\, n.; pl. {Spinnies}. [OF. espinaye,espinoye,
   espinei, espanoi, F. ['e]pinaie, from L. spinetum a thicket
   of thorns, fr. spina a thorn. See {Spine}.]
   A small thicket or grove with undergrowth; a clump of trees.
   [Written also {spinney}, and {spinny}.]

         The downs rise steep, crowned with black fir spinnies.
                                                  --C. Kingsley.