Where does “обостриться” come from?
обостриться (Russian) comes from Russian обостри́ть, from Russian остри́ть, from Russian о́стрый, from Proto-Slavic ostrъ, from Proto-Balto-Slavic aśras, from Proto-Indo-European *h₂eḱrós, from Proto-Indo-European h₂eḱ- — sharp.
обостриться (Russian): to become sharp; to become more sensitive/acute;...
Definitions
- to become sharp; to become more sensitive/acute;...
Ancestry of “обостриться”, step by step