Where does “громоотвод” come from?

громоотвод (Russian) comes from Russian гро́м, 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.

громоотвод (Russian): lightning rod

Definitions

  1. lightning rod

Ancestry of “громоотвод”, step by step

громоотвод traces back through two separate lines of ancestry.

via Russian гро́м

StepLanguageWordMeaning
1Russianгро́мthunder, thunderbolt
2Proto-Slavicgromъthunder
3Proto-Indo-Europeangʰrom-o-
4Proto-Indo-Europeangʰrem-to be angry; to sound, bellow, growl, roar, be...
5Proto-Indo-Europeangʰer-to rub; to stroke; to grind

via Russian отво́д

StepLanguageWordMeaning
1Russianотво́дwithdrawal

Words derived from “громоотвод

Every word from Proto-Indo-European gʰer-Every word from Proto-Indo-European gʰrem-Every word from Proto-Indo-European gʰrom-o-