Where does “pennoù” come from?

pennoù (Breton) comes from Breton penn, from Middle Breton penn, from Old Breton penn, from Proto-Brythonic penn, from Proto-Celtic kʷennom — head.

Definitions

Ancestry of “pennoù”, step by step

StepLanguageWordMeaning
1Bretonpennhead; chief, leader
2Middle Bretonpenn—
3Old Bretonpenn—
4Proto-Brythonicpennhead
5Proto-Celtickʷennomhead
Every word from Proto-Celtic kʷennom →Every word from Proto-Brythonic penn →Every word from Old Breton penn →