The Collaborative International Dictionary of English v.0.48:

Colley \Col"ley\, n.
   See Collie.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Collie \Col"lie\ (k[o^]l"l[y^]), n. [Gael. cuilean whelp, puppy,
   dog.] (Zool.)
   The Scotch shepherd dog. There are two breeds, the
   rough-haired and smooth-haired. It is remarkable for its
   intelligence, displayed especially in caring for flocks.
   [Written also colly, colley.]
   [1913 Webster]