Where does “мерно” come from?

мерно (Russian) comes from Russian ме́рный, from Russian ме́ра, from Old East Slavic мѣра, from Proto-Slavic měra, from Proto-Balto-Slavic mḗˀrāˀ, from Proto-Indo-European meh₁-reh₂, from Proto-Indo-European meh₁- — to measure.

мерно (Russian): in a rhythmic or measured manner

Definitions

  1. in a rhythmic or measured manner

Ancestry of “мерно”, step by step

StepLanguageWordMeaning
1Russianме́рныйrhythmic, measured
2Russianме́раmeasure
3Old East Slavicмѣра—
4Proto-Slavicměrameasure
5Proto-Balto-Slavicmḗˀrāˀ—
6Proto-Indo-Europeanmeh₁-reh₂—
7Proto-Indo-Europeanmeh₁-to measure
Every word from Proto-Indo-European meh₁- →Every word from Proto-Indo-European meh₁-reh₂ →Every word from Proto-Balto-Slavic mḗˀrāˀ →