Compare Persian نشیمن, from نیشتن (nîştin, “to land, to sit”) + Proto-Indo-European *-mn̥. Or perhaps نیشت (nîşt, “country”) + *مان (*man) (> ماڵ (mall, “home”).
IPA: niːʃtɪmaːn
نیشتمان (nîştiman)