Where does “bẹrŭro-” come from?

bẹrŭro- (Gaulish) comes from Proto-Celtic beru, from Proto-Indo-European bʰrewh₁-, from Proto-Indo-European bʰer- — to bear, carry.

Ancestry of “bẹrŭro-”, step by step

StepLanguageWordMeaning
1Proto-Celticberuspit
2Proto-Indo-Europeanbʰrewh₁-to boil; to brew
3Proto-Indo-Europeanbʰer-to bear, carry
Every word from Proto-Indo-European bʰer- →Every word from Proto-Indo-European bʰrewh₁- →Every word from Proto-Celtic beru →