Where does “урок” come from?

урок (Bulgarian) comes from Old Church Slavonic оурокъ, from Proto-Slavic urokъ, from Proto-Slavic -ъ, from Proto-Indo-European -om, from Proto-Indo-European -o-.

урок (Bulgarian): lesson

Definitions

  1. lesson

Ancestry of “урок”, step by step

StepLanguageWordMeaning
1Old Church Slavonicоурокъinstruction
2Proto-Slavicurokъverbal agreement, contract; evil eye, curse,...
3Proto-Slavic-ъ*poteťi → *potokъ; *teťi → *tokъ; *gňiti →...
4Proto-Indo-European-omemphatic suffix or postpositive particle
5Proto-Indo-European-o-—
Every word from Proto-Indo-European -o- →Every word from Proto-Slavic -ъ →Every word from Proto-Slavic urokъ →