Where does “взаимно” come from?

взаимно (Russian) comes from Russian взаи́мный, from Proto-Slavic *vъzajьmьnъ — mutual.

взаимно (Russian): mutually, reciprocally

Definitions

  1. mutually, reciprocally

Ancestry of “взаимно”, step by step

StepLanguageWordMeaning
1Russianвзаи́мныйmutual, reciprocal
2Proto-Slavic*vъzajьmьnъmutual
Every word from Proto-Slavic *vъzajьmьnъ →Every word from Russian взаи́мный →