Where does “тяжко” come from?

тяжко (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.

тяжко (Russian): sorely, gravely, heavily; with difficulty; short...

Definitions

  1. sorely, gravely, heavily; with difficulty; short...

Ancestry of “тяжко”, step by step

StepLanguageWordMeaning
1Russianтя́жкийhard
2Old East Slavicтѧжькъheavy
3Proto-Slavictęžьkъheavy
4Lithuaniantinguslazy
5Proto-Indo-Europeantengʰ-to pull; to be heavy, difficult
6Proto-Indo-Europeanten-to stretch, to extend
Every word from Proto-Indo-European ten- →Every word from Proto-Indo-European tengʰ- →Every word from Lithuanian tingus →