be black; make black
Latin word, found 42 times in the texts on Socratos.
Vergil, Aeneid 4.120: His ego nigrantem commixta grandine nimbum,
Ovid, Metamorphoses 2.535: corve loquax, subito nigrantes versus in alas.
Lucretius, De Rerum Natura 2.733: aut ea quae nigrant nigro de semine nata;
All forms of nigro