Copyhold ~ a former tenure of land in England and Ireland by right of being recorded in the court of the manor...
So by their having copyhold they are recorded as being the holder/possessor thus have surety?
Printed copy · Anthology Volume 5, page 885Printed copy from The Tender For Law Anthology, Volume 5, page 885 (printed 13 June 2014). Added by this site; not part of the Facebook export.