Where does “трёхмесячный” come from?

трёхмесячный (Russian) comes from Russian ме́сяц, from Old East Slavic мѣсѧць, from Proto-Slavic měsęcь, from Proto-Indo-European mḗh₁n̥s, from Proto-Indo-European meh₁- — to measure.

трёхмесячный (Russian): three-month lasting three months

Definitions

  1. three-month lasting three months

Ancestry of “трёхмесячный”, step by step

StepLanguageWordMeaning
1Russianме́сяцmonth
2Old East Slavicмѣсѧцьmoon
3Proto-Slavicměsęcьmoon; month
4Proto-Indo-Europeanmḗh₁n̥smoon; month
5Proto-Indo-Europeanmeh₁-to measure
Every word from Proto-Indo-European meh₁- →Every word from Proto-Indo-European mḗh₁n̥s →Every word from Proto-Slavic měsęcь →