from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Growing or becoming black; approaching blackness.
from the GNU version of the Collaborative International Dictionary of English
- adj. Growing black; changing to a black color; approaching to blackness.
from The Century Dictionary and Cyclopedia
- Blackish; somewhat black; dusky; fuscous.
Latin nigrescens, present participle of nigrescere to grow black, from niger black. See negro. (Wiktionary)