Where does “bró” come from?

bró (Old Irish) comes from Old Irish brao, from Proto-Celtic brawū, from Proto-Indo-European gʷréh₂wō, from Proto-Indo-European gʷréh₂us, from Proto-Indo-European -us — Forms adjectives from Caland system roots.

bró (Old Irish): millstone, handmill

Definitions

  1. millstone, handmill

Ancestry of “bró”, step by step

StepLanguageWordMeaning
1Old Irishbraoquern, millstone
2Proto-Celticbrawūquern, millstone
3Proto-Indo-Europeangʷréh₂wōquern, mill-stone
4Proto-Indo-Europeangʷréh₂usheavy
5Proto-Indo-European-usForms adjectives from Caland system roots
Every word from Proto-Indo-European -us →Every word from Proto-Indo-European gʷréh₂us →Every word from Proto-Indo-European gʷréh₂wō →