Where does “*kerð” come from?

*kerð (Proto-Brythonic) comes from Proto-Celtic kerdā, from Proto-Indo-European ḱerd- — heart.

Ancestry of “*kerð”, step by step

StepLanguageWordMeaning
1Proto-Celtickerdācraft, skill
2Proto-Indo-Europeanḱerd-heart
Every word from Proto-Indo-European ḱerd- →Every word from Proto-Celtic kerdā →