Where does “тврд” come from?
тврд (Serbo-Croatian) comes from Proto-Slavic tvьrdъ, from Proto-Balto-Slavic *twírˀtas, from Proto-Indo-European twerH- — to enclose, fence in; to grab, seize; to stir.
тврд (Serbo-Croatian): hard, firm
Definitions
- hard, firm