cessor

From cess (“to cease to perform a legal duty”) +‎ -or.^[1]

cessor (plural cessors)

1. (law) In English law, one who is dilatory, negligent, and delinquent in his duty or service, and who thereby incurred the danger of the law, and was liable to have the writ of cessavit brought against him.
   • 1827, John Perkins, A Profitable Book, Treating of the Laws of England‎:

     If there be lord and tenant, and the tenant take a wife, and afterwards cesseth, upon which the lord bringeth a cessavit, and recovers, and enters into the tenancy, and the tenant dies: it seems clear, that the wife shall have dower; for no laches or default can be deemed in the wife as to the cessor. But some say, the wife shall not have dower in this case, because the cessor does not lie in any act done by the husband; but it is his not doing...

• cesser
• cesseth

From cess (“to determine the amount of a cess”) +‎ -or.^[2]

cessor (plural cessors)

1. (obsolete) One who determined the amount of a cess; an assessor.
   • 1596, Spenser, A View of the Present State of Irelande‎:

     ...yet some there be of that nature, that though they be in private men, yet their evil reacheth to a general hurt; as the extortion of sheriffs and their sub-sheriffs and bailiffs ; the corruption of victuallers, cessors, and purveyors ...

• 1728, Cyclopaedia, a publication in the public domain.

• Croses, Crosse, Secors, Sorces, corses, crosse, orcess, scores, scorse

cessor

1. first-person singular present passive indicative of cessō