Where does “гръмотевица” come from?

гръмотевица (Bulgarian) comes from Bulgarian гръ́мот, from Bulgarian гръм, from Proto-Slavic gromъ, from Proto-Indo-European gʰrom-o-, from Proto-Indo-European gʰrem-, from Proto-Indo-European gʰer- — to rub; to stroke; to grind.

гръмотевица (Bulgarian): thunder, thunderclap a loud sound produced in the sky during a thunderstorm

Definitions

  1. thunder, thunderclap a loud sound produced in the sky during a thunderstorm

Ancestry of “гръмотевица”, step by step

StepLanguageWordMeaning
1Bulgarianгръ́мотthunder, hurtle, bang
2Bulgarianгръмthunder
3Proto-Slavicgromъthunder
4Proto-Indo-Europeangʰrom-o-
5Proto-Indo-Europeangʰrem-to be angry; to sound, bellow, growl, roar, be...
6Proto-Indo-Europeangʰer-to rub; to stroke; to grind
Every word from Proto-Indo-European gʰer-Every word from Proto-Indo-European gʰrem-Every word from Proto-Indo-European gʰrom-o-