Where does “boul” come from?

boul (Champenois) comes from Old French boul, from Latin betullus, from Latin betulla, from Gaulish bitu, from Proto-Celtic betwiyos, from Proto-Indo-European gʷét- — resin, gum.

boul (Champenois): birch, Betula

Definitions

  1. birch, Betula

Ancestry of “boul”, step by step

StepLanguageWordMeaning
1Old Frenchboulbirch
2Latinbetullus—
3Latinbetullabirch tree
4Gaulishbitu—
5Proto-Celticbetwiyos—
6Proto-Indo-Europeangʷét-resin, gum
Every word from Proto-Indo-European gʷét- →Every word from Proto-Celtic betwiyos →Every word from Gaulish bitu →