Sadden

v. t. [imp. & p. p. SADDENED; p. pr. & vb. n. SADDENING.] To make sad; as, (a.) To render heavy or cohesive. [Obs.] “Marl is binding, and saddening of land is the great prejudice it doth to clay lands.” Mortimer. (b.) To make dark-colored, as cloth. [Obs.] (c.) To make grave or serious; to make melancholy or sorrowful. Her gloomy presence saddens all the scene. Pope.

v. i. To become, or be made, sad.