A feudal tenure
by knight service
due only to the king
. - Also spelled sergeanty
Serjeanty requiring the tenant to personally perform a service to the king, as by carrying the king's banner
or officiating at the king's coronation
. Serjeanty that either did not have to be performed personally by the tenant or was not personal in nature, such as an annual payment of rent
by a bow, sword, arrow, or other war implement.
I think I'll try to pay my rent this month with a bow and arrow. Not an expensive compound bow; maybe a plastic toy set. That bastard slumlord deserves it.