Coigne

noun

1. In Ireland, formerly, the custom of landlords quartering themselves upon their tenants at pleasure. The term appears to have been applied also to the forcible billeting of others, as of soldiers.
2. To quarter one's self on another by force; live by extortion.
3. A quoin.
4. The practice of quartering one's self as landlord on a tenant; a quartering of one's self on anybody.
5. quoin (keystone)