† preˈpensityObs.rare—1. In 8 præ-. [f. prepense a. + -ity: cf.immensity.] Premeditation. 1757E. Griffith Lett. Henry & Frances (1767) II. 43 Montaigne observes,..upon the subject of death, ‘that the philosophy of the schools but increases, by præpensity, the terrors of it’.