The Ghassanids (Arabic: الغساسنة) (al-Ghasāsinah, also Banū Ghassān "Sons of Ghassān") were a group of Hellenized and later Romanized South Arabian Christian tribes that emigrated in the early 3rd century from Yemen to Southern Syria, Jordan, Lebanon and the Holy Land where they eventually merged with Greek-speaking Early Christian communities. The term Ghassān refers to the kingdom of the Ghassanids, an ancient Arab Christian kingdom in the Levant.
Read more about Ghassanids: Migration From Yemen 3rd Century AD, Settling, The Ghassanid Kingdom in The Roman Era, The Ghassanid Kingdom in The Byzantine Era, The Ghassanids and Islam, Ghassanid Kings, Legacy