nigrescent

• The bride elect held her head very erect; the red spots in her cheeks glowed like double peonies; her two thin curls, done in oil for the occasion, hung straight and stiff like pendant icicles nigrescent; her sparkling black eyes looked apparently into vacuity, while they were really beholding the acme of all her hopes. —  Hubert's Wife A Story for You
• -- "Light fulvous on the face, middle of back and upper part of tail; cheeks, sides of neck and body, inner side, and most of the fore parts of the limbs, white; shoulder and haunch, and outside of the limbs nearly to the middle joint, mixed black and white; tail darker at the base above, largely tipped with white; lower parts nigrescent; ears black posteriorly; fur soft and fine as in _V. montanus_, altogether dissimilar from that of _V. —  Natural History of the Mammalia of India and Ceylon

Allen's Synonyms and Antonyms