проблемаproblema [atis, n];
вдоваvidua [ae, f];
касатьсяtangere, o, tetigi,
constans [ntis];immutabilis [e];immutatus [a, um];stabilis [e] (amicus);inflexibilis [e];perpetuus [a, um] (cursus stellarum);vivax [cis];integer [gra, um];