Where does “Caraș-Severin” come from?

Caraș-Severin (English) comes from Romanian Caraș-Severin, from Romanian Caraș, from Russian карась, from Proto-Slavic karasь — crucian carp; any fish of the genus Carassius.

Ancestry of “Caraș-Severin”, step by step

StepLanguageWordMeaning
1RomanianCaraș-Severin
2RomanianCarașcrucian carp (Carassius carassius)
3Russianкарасьcrucian carp (Carassius carassius)
4Proto-Slavickarasьcrucian carp; any fish of the genus Carassius
Every word from Proto-Slavic karasьEvery word from Russian карасьEvery word from Romanian Caraș