Where does “равносторонний” come from?

равносторонний (Russian) comes from Russian сторона́, from Proto-Slavic stornà — side, land.

равносторонний (Russian): equilateral

Definitions

  1. equilateral

Ancestry of “равносторонний”, step by step

равносторонний traces back through two separate lines of ancestry.

via Russian сторона́

StepLanguageWordMeaning
1Russianсторона́side, hand, party
2Proto-Slavicstornàside, land

via Russian ра́вный

StepLanguageWordMeaning
1Russianра́вныйequal (the same in all respects)
Every word from Proto-Slavic stornà →Every word from Russian сторона́ →