What is to cover over; to disguise; to conceal; to pass over lightly or with little notice. With periods, points, and tropes, he slurs his crimes. Dryden called?

slur — To cover over; to disguise; to conceal; to pass over lightly or with little notice. With periods, points, and tropes, he slurs his crimes. Dryden. (Webster's 1913.)

Sources