Where does “říhat” come from?

říhat (Czech) comes from Old Czech říhati, from Proto-Slavic rygati, from Proto-Balto-Slavic rūˀgā́ˀtei, from Proto-Indo-European h₁rug-, from Proto-Indo-European h₁rewg- — to belch; to roar.

Ancestry of “říhat”, step by step

StepLanguageWordMeaning
1Old Czechříhati
2Proto-Slavicrygatito belch
3Proto-Balto-Slavicrūˀgā́ˀtei
4Proto-Indo-Europeanh₁rug-
5Proto-Indo-Europeanh₁rewg-to belch; to roar
Every word from Proto-Indo-European h₁rewg-Every word from Proto-Indo-European h₁rug-Every word from Proto-Balto-Slavic rūˀgā́ˀtei