corvee (n.) Look up corvee at Dictionary.com
mid-14c., "day's unpaid labor due to a lord by vassals under French feudal system" (abolished 1776), from Old French corvee (12c.), from Late Latin corrogata (opera) "requested work," from fem. past participle of Latin corrogare, from assimilated form of com "with" (see com-) + rogare "to ask" (see rogation).