Where does “*skrubbijō” come from?

*skrubbijō (Proto-Germanic) comes from Proto-Indo-European (s)kerb-, from Proto-Indo-European sḱer- — to caw, crow.

Ancestry of “*skrubbijō”, step by step

StepLanguageWordMeaning
1Proto-Indo-European(s)kerb-rough, sharp
2Proto-Indo-Europeansḱer-to caw, crow

Words derived from “*skrubbijō

Every word from Proto-Indo-European sḱer-Every word from Proto-Indo-European (s)kerb-