Seyyid

Sayyid (UK: , US: ; Arabic: سيد [ˈsæjjɪd]; Persian: [sejˈjed]; meaning 'sir', 'Lord', 'Master'; Arabic plural: سادة sādah; feminine: سيدة sayyidah; Persian: [sejˈjede]) is an honorific title of Hasanids and Husaynids Muslims, recognized as descendants of the Islamic prophet's companion, Ali through his sons, Hasan and Husayn.