Where does “голуб” come from?

голуб (Belarusian) comes from Russian го́лубь, from Proto-Slavic golǫbь, from Proto-Balto-Slavic galambas.

голуб (Belarusian): pigeon, dove

Definitions

Step	Language	Word	Meaning
1	Russian	го́лубь	pigeon, dove
2	Proto-Slavic	golǫbь	pigeon
3	Proto-Balto-Slavic	galambas	—

голуб — Etymology, Origin & Word History | Etymology Explorer