Where does “brithys” come from?

brithys (Cornish) comes from Cornish brith, from Proto-Brythonic briθ, from Proto-Celtic mrixtos, from Proto-Indo-European mr̥gʷ-tó-s, from Proto-Indo-European -tós — Creates verbal adjectives from verb stems.

brithys (Cornish): dappled, mottled, spotted

Definitions

  1. dappled, mottled, spotted

Ancestry of “brithys”, step by step

brithys traces back through two separate lines of ancestry.

via Cornish brith

StepLanguageWordMeaning
1Cornishbrithspotted
2Proto-Brythonicbriθcharm, incantation; painted, speckled, variegated
3Proto-Celticmrixtospainted, speckled
4Proto-Indo-Europeanmr̥gʷ-tó-s
5Proto-Indo-European-tósCreates verbal adjectives from verb stems

via Cornish ys

StepLanguageWordMeaning
1Cornishyscorn
Every word from Proto-Indo-European -tós