The so-called "Nisba" is a suffix used to derive adjectives from nouns and, in Egyptian, also from prepositions.
ðə sˌoʊkˈɔːld "nˈɪsbə" ɪz ɐ sˈʌfɪks jˈuːzd tə dᵻɹˈaɪv ˈædʒɪktˌɪvz fɹʌm nˈaʊnz ænd, ɪn ɪdʒˈɪpʃən, ˈɔːlsoʊ fɹʌm pɹˌɛpəzˈɪʃənz.