Where does “gayaf” come from?

gayaf (Middle Welsh) comes from Old Welsh gaem, from Proto-Celtic gyemos, from Proto-Indo-European ǵʰyem- — winter.

Ancestry of “gayaf”, step by step

StepLanguageWordMeaning
1Old Welshgaem—
2Proto-Celticgyemoswinter
3Proto-Indo-Europeanǵʰyem-winter

Words derived from “gayaf”

Every word from Proto-Indo-European ǵʰyem- →Every word from Proto-Celtic gyemos →Every word from Old Welsh gaem →