The Collaborative International Dictionary of English v.0.48:

Capel \Ca"pel\ (k[=a]"p[e^]l), Caple \Ca"ple\ (-p'l), n. [Icel.
   kapall; cf. L. caballus.]
   A horse; a nag. [Obs.] --Chaucer. --Holland.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Capel \Ca"pel\ (k[=a]"p[e^]l), n. (Mining)
   A composite stone (quartz, schorl, and hornblende) in the
   walls of tin and copper lodes.
   [1913 Webster]