† diˈseasify,v.Obs.rare. [f. diseasy a. + -fy.] To cause disease. Hence diˈseasifyingppl. a. 1662J. Chandler Van Helmont's Oriat. 181 In an Erisipelas..the vitall Spirit being incensed, and as it were provoked to anger by the diseasifying cause, waxeth exceeding hot.Ibid. 238.