Semite to the best of my knowledge is a tag applied to any group that claims descent from Abraham, the Hebrews through Isaac and Arabs through Ishmael, although the dictionary seems to disagree with me saying....
Semite Definition & Meaning | Dictionary.com
1)A member of a group of Semitic-speaking peoples of the Near East and northern Africa, including the Arabs, Arameans, Babylonians, Carthaginians, Ethiopians, Hebrews, and Phoenicians.
2)A Jew.
3)Bible. A descendant of Shem