Where does “трꙋдъ” come from?

трꙋдъ (Old East Slavic) comes from Proto-Slavic trudъ, from Proto-Indo-European trewd- — to push, to thrust.

Ancestry of “трꙋдъ”, step by step

StepLanguageWordMeaning
1Proto-Slavictrudъlabour, effort
2Proto-Indo-Europeantrewd-to push, to thrust
Every word from Proto-Indo-European trewd-Every word from Proto-Slavic trudъ