Where does “тяжесть” come from?
тяжесть (Russian) comes from Russian тя́жкий, from Old East Slavic тѧжькъ, from Proto-Slavic tęžьkъ, from Lithuanian tingus, from Proto-Indo-European tengʰ-, from Proto-Indo-European ten- — to stretch, to extend.
тяжесть (Russian): heaviness; weight; load
Ancestry of “тяжесть”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Russian | тя́жкий | hard |
| 2 | Old East Slavic | тѧжькъ | heavy |
| 3 | Proto-Slavic | tęžьkъ | heavy |
| 4 | Lithuanian | tingus | lazy |
| 5 | Proto-Indo-European | tengʰ- | to pull; to be heavy, difficult |
| 6 | Proto-Indo-European | ten- | to stretch, to extend |