…You know how basically all Indoeuropean languages have a word for Canis Lupus that sounds vaguely like “Ulku”? Ulv/Ulf/Wolf/Vlk/Vilks/Vuk/Loup/Lykos? Well, there’s another word, walhaz that started off meaning “Celt”, then “Roman”, then generic “foreigner”, and can be found today in exonyms all over Europe. It didn’t occur to me that Latin wouldn’t have had it, since they were the Vlachs in question.