Who is Rabinovich?

It's a common name for Jews in Slavic language areas.

Rabinovich is composed of the Hebrew word "teacher" with the suffix "son". According to the naming rules of the Eastern Slavs, everyone's name generally consists of three parts: the original name, the father's name and the surname. The father's name is the father's name plus "my son" ("Norwich") or "my daughter" ("Nova").

Introduction to Slavic:

Slavic languages are divided into Eastern Slavic, Western Slavic and Yugoslav. The East Slavic branch consists of Russians, Ukrainians and Belarusians. The West Slavic branch includes Polish, Sorbian, Czech and Slovak; The languages belonging to the Yugoslav branch are Bulgarian, Serbian-Croatian, Macedonian and Slovenian.

It belongs to the Yugoslavian branch of the Slavic family of Indo-European languages. It is based on a dialect of ancient Bulgarian: Southern Macedonia dialect. The phonological structure and morphological structure of ancient Slavic language are very close to those of later Slavic language, such as nasal vowels and vowels. Nouns include address forms and even numbers, and the short-tailed forms of adjectives also change their forms and can be used as attributes.