nigra
nigra is a Latin form of niger, meaning “black, dark”. It is the accusative plural neuter adjective.
Found 104 times in the Latin texts on Socratos.
Where it is used
Vergil, Eclogues 2.18: alba ligustra cadunt, vaccinia nigra leguntur.
Vergil, Georgics 2.203: Nigra fere et presso pinguis sub vomere terra
All forms of niger (declension table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.