устойчиво
constanter;
stabiliter;
навечно
in saecula saeculorum;
жизнеспособный
vitalis [e];
hypothesis [is, f];
conjectura [ae, f];
conjectatio [onis, f];
opinio [onis, f];
suspicio [onis, f] (alicujus rei);
censio [onis, f];
praesumptio [onis, f];
propositum [i, n];