circumcellion

from The Century Dictionary.

• One of a party of Donatists in northern Africa, chiefly peasants, in the fourth and fifth centuries: so called because they wandered about in bands from place to place.
• In the fourth and succeeding centuries, in various places, a vagabond monk, acknowledging no regularly constituted ecclesiastical authority.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Alternative capitalization of Circumcellion