Where does “cenedlaethau” come from?

cenedlaethau (Welsh) comes from Welsh cenhedlaeth, from Welsh cenedl, from Middle Welsh kenedyl, from Old Welsh kenedel, from Proto-Brythonic *kenedl, from Proto-Celtic kenetlom, from Proto-Indo-European ḱen- — to set oneself in motion, arise.

Ancestry of “cenedlaethau”, step by step

StepLanguageWordMeaning
1Welshcenhedlaethnation
2Welshcenedlnation; tribe, clan, kindred; generation
3Middle Welshkenedyl—
4Old Welshkenedelkindred, clan; family to the ninth degree of...
5Proto-Brythonic*kenedl—
6Proto-Celtickenetlomrace, people
7Proto-Indo-Europeanḱen-to set oneself in motion, arise
Every word from Proto-Indo-European ḱen- →Every word from Proto-Celtic kenetlom →Every word from Proto-Brythonic *kenedl →