in Brazil the outskirts or suburbs of a city are called "periferia", and it might be that the person didn't know the english words for "lado" or "borda" so he u

in Brazil the outskirts or suburbs of a city are called "periferia", and it might be that the person didn't know the english words for "lado" or "borda" so he used a close relative which is "periferia", sounds very plausible to me. nothing to do with fancy words, because "periferia" definetly ain't fancy (in pt)