Where does “-ar” come from?

-ar (Welsh) comes from Proto-Brythonic -ar, from Proto-Celtic -aros, from Proto-Celtic -a-.

-ar (Welsh): adjectival suffix

Definitions

  1. adjectival suffix

Ancestry of “-ar”, step by step

StepLanguageWordMeaning
1Proto-Brythonic-ar—
2Proto-Celtic-arosForms collective nouns
3Proto-Celtic-a-—
Every word from Proto-Celtic -a- →Every word from Proto-Celtic -aros →Every word from Proto-Brythonic -ar →