Where does “тысячелетний” come from?
тысячелетний (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.
тысячелетний (Russian): thousand-year; thousand-year-old
Definitions
- thousand-year; thousand-year-old
Ancestry of “тысячелетний”, step by step