\Ces"sor\, n. [From {Cess}, v. i. Cf. {Cesser}.] (Law)
One who neglects, for two years, to perform the service by
which he holds lands, so that he incurs the danger of the
writ of cessavit. See {Cessavit}. --Cowell.

\Ces"sor\, n. [From {Cess}, v. t.]
An assessor. [Obs.]