sporter

Noun

 * 1) Someone who sports something.
 * 2)  A firearm suitable for sporting use.
 * 3)  One who takes part in sport or games.
 * 4) One who sports or plays with something; a trifler.
 * 1) One who sports or plays with something; a trifler.
 * 1) One who sports or plays with something; a trifler.

Etymology
Either from or borrowed from. The verb is attested a few years later than sporter.

Noun

 * 1) one who plays a sport (habitually)