почернеть
nigrescere [o, ui,-];
модернизация
modernisatio [onis, f];
система
systema [atis, n];
arcanus [a, um];
absconditus [a, um];
tacitus [a, um] (aliquid tacitum relinquere, tenere;
judicium;
vulnus);
secretus [a, um];
occultus [a, um];
abditus [a, um];
obscurus [a, um];