высокі (Belarusian) comes from Russian высо́кий, from Old East Slavic вꙑсокъ, from Proto-Slavic vysokъ, from Proto-Slavic -okъ, from Proto-Slavic -kъ, from Proto-Indo-European -kos — Creates deadjectival and desubstantival...
высокі (Belarusian): high, tall