The Collaborative International Dictionary
Avercorn
Avercorn \A"ver*corn`\, n. [Aver, n. + corn.] (Old Eng. Law)
A reserved rent in corn, formerly paid to religious houses by
their tenants or farmers.
--Kennet.
Wiktionary
avercorn
n. A reserved rent in corn, formerly paid to religious houses by their tenants or farmers.