Where does “тугъ” come from?

тугъ (Old East Slavic) comes from Proto-Slavic tǫgъ, from Proto-Indo-European tengʰ-, from Proto-Indo-European ten- — to stretch, to extend.

Ancestry of “тугъ”, step by step

StepLanguageWordMeaning
1Proto-Slavictǫgъtight, solid, tough
2Proto-Indo-Europeantengʰ-to pull; to be heavy, difficult
3Proto-Indo-Europeanten-to stretch, to extend

Words derived from “тугъ”

Every word from Proto-Indo-European ten- →Every word from Proto-Indo-European tengʰ- →Every word from Proto-Slavic tǫgъ →