† niˈgredityObs.rare. [f. late L. nigrēdo blackness.] Blackness. 1547Boorde Brev. Health lxxiii. 24 In whose urynes any nygreditie or blackenes hath dominion.1597A. M. tr.Guillemeau's Fr. Chirurg. 29/2 Ther remayneth somtimes a nigreditye or blacknes about the apertione.