The “Palestinians” didn’t come from Jordan; they came from places like Egypt and Iraq. Even PLO leader Zuheir Mohsen, although through some double-talking, admitted back in 1977 that Jordanians and “Palestinians” were not the same.
Sorry but I beg to differ.
“In 1917 Great Britain issued the Balfour Declaration for “the establishment in Palestine of a national home for the Jewish people”. In 1922 Britain allocated nearly 80% of Palestine to Transjordan. Thus, Jordan covers the majority of the land of Palestine under British Mandate. Jordan also includes the majority of the Arabs who lived there. In other words, Jordan is the Arab portion of Palestine.
The residents of Palestine are called “Palestinians”. Since Palestine includes both modern day Israel and Jordan both Arab and Jewish residents of this area were referred to as “Palestinians”.