Where does “серая полёвка” come from?

серая полёвка (Russian) comes from Russian се́рый, from Proto-Slavic śěrъ — gray.

серая полёвка (Russian): Any vole in the genus Microtus

Definitions

  1. Any vole in the genus Microtus

Ancestry of “серая полёвка”, step by step

серая полёвка traces back through two separate lines of ancestry.

via Russian се́рый

StepLanguageWordMeaning
1Russianсе́рыйgrey
2Proto-Slavicśěrъgray

via Russian полёвка

StepLanguageWordMeaning
1Russianполёвкаvole, field mouse mammal
Every word from Proto-Slavic śěrъ →Every word from Russian се́рый →