Where does “улучшиться” come from?
улучшиться (Russian) comes from Russian -ся, from Old East Slavic сѧ, from Proto-Slavic sę, from Proto-Balto-Slavic *sen, from Proto-Indo-European swé — self.
улучшиться (Russian): to improve, to ameliorate, to take a turn for the better
Definitions
- to improve, to ameliorate, to take a turn for the better