Where does “смех” come from?

смех (Belarusian) comes from Proto-Slavic směxъ, from Proto-Slavic smьjati, from Proto-Indo-European smēy-.

смех (Belarusian): laughter

Definitions

  1. laughter

Ancestry of “смех”, step by step

StepLanguageWordMeaning
1Proto-Slavicsměxъlaughter
2Proto-Slavicsmьjatito laugh
3Proto-Indo-Europeansmēy-—
Every word from Proto-Indo-European smēy- →Every word from Proto-Slavic smьjati →Every word from Proto-Slavic směxъ →