Assertory \As*sert"o*ry\, a. [L. assertorius, fr. asserere.] Affirming; maintaining. [1913 Webster] Arguments . . . assertory, not probatory. --Jer. Taylor. [1913 Webster] An assertory, not a promissory, declaration. --Bentham. [1913 Webster] A proposition is assertory, when it enounces what is known as actual. --Sir W. Hamilton. [1913 Webster]