Where does “Кобзаров” come from?

Кобзаров (Bulgarian) comes from Romanian cobzar, from Romanian -ar, from Latin -ārius, from Proto-Italic *-āzios — Forms relational adjectives to nouns (and rarely numerals).

Ancestry of “Кобзаров”, step by step

StepLanguageWordMeaning
1Romaniancobzarcobza player
2Romanian-ar-er
3Latin-āriuser
4Proto-Italic*-āziosForms relational adjectives to nouns (and rarely numerals)
Every word from Proto-Italic *-āzios →Every word from Latin -ārius →Every word from Romanian -ar →