“unusual redness of plumage or hair, often with a ruddy complexion in humans”It derives from the Greek word eruthros meaning ‘red.’
When checking the dictionary I also came across the Erythraeans;
“of ancient Erythrae: relating or belonging to the ancient city of Erythrae in Turkey, or, formerly, to the group of Hamito-Semitic languages spoken in the region of Erythrae”I don’t suppose these guys were red-haired, but it might be worth checking out. The ‘red’ in the name probably relates to the land or something I would imagine, but you never know. Worth bearing in mind for the future maybe.
