https://en.wikipedia.org/wiki/Blue%E2%80%93green_distinction_in_language#/media/File:Colours_in_Irish.png https://en.wikipedia.org/wiki/Blue%E2%80%93green_disti

https://en.wikipedia.org/wiki/Blue%E2%80%93green_distinction_in_language#/media/File:Colours_in_Irish.png https://en.wikipedia.org/wiki/Blue%E2%80%93green_distinction... is probably the main reason why the term for a black man in Irish Gaelic is 'fear gorm', the default literal translation of which would usually be 'blue man'. (Not a native speaker, but I had reached a decent level, many years ago now.)