Where does “тысячеугольник” come from?

тысячеугольник (Russian) comes from Russian ты́сяча, from Old East Slavic тысяча, from Proto-Slavic tỳsęti, from Proto-Balto-Slavic *tū́ˀsantis, from Proto-Indo-European tuHsont-, from Proto-Indo-European tewh₂- — to swell; to crowd; to be strong.

тысячеугольник (Russian): chiliagon

Definitions

  1. chiliagon

Ancestry of “тысячеугольник”, step by step

тысячеугольник traces back through two separate lines of ancestry.

via Russian ты́сяча

StepLanguageWordMeaning
1Russianты́сячаthousand
2Old East Slavicтысяча—
3Proto-Slavictỳsęti—
4Proto-Balto-Slavic*tū́ˀsantisthousand
5Proto-Indo-EuropeantuHsont-thousand
6Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong

via Russian у́гол

StepLanguageWordMeaning
1Russianу́голangle; corner
2Proto-Slavicǫgъlъcorner, angle
3Proto-Balto-Slavic*ángulas—
4Proto-Indo-Europeanh₂engulosjoint?
5Proto-Indo-Europeanh₂eng-curve, bend
Every word from Proto-Indo-European tewh₂- →Every word from Proto-Indo-European tuHsont- →Every word from Proto-Balto-Slavic *tū́ˀsantis →