Where does “celynnen” come from?

celynnen (Welsh) comes from Welsh celyn, from Proto-Celtic kolinnos, from Proto-Indo-European ḱol-, from Proto-Indo-European ḱel- — to cover; to incline.

Ancestry of “celynnen”, step by step

StepLanguageWordMeaning
1Welshcelynholly
2Proto-Celtickolinnos—
3Proto-Indo-Europeanḱol-thorn, thorny plant
4Proto-Indo-Europeanḱel-to cover; to incline
Every word from Proto-Indo-European ḱel- →Every word from Proto-Indo-European ḱol- →Every word from Proto-Celtic kolinnos →