small nominal rent paid to commute feudal service
• (n.) A rent reserved in grants of land, by the payment of which the tenant is quit from other service.
Quit'rent` (kwĭt'rĕnt`) noun [ Quit , adjective + rent .] (Law) A rent reserved in grants of land, by the payment of which the tenant is quit from other service. Blackstone. » In some of the United States a fee-farm rent is so termed. Burrill. 
rent paid by a freeholder or copyholder in lieu of services that might otherwise have been required.