Where does “فلسطين” come from?
فلسطين (South Levantine Arabic) comes from Arabic فِلَسْطِين, from Ancient Greek Παλαιστίνη, from Ancient Greek Παλαιστῑ́νη, from Hebrew פְּלֶשֶׁת, from Hebrew פ־ל־ש — migrate, invade.
Ancestry of “فلسطين”, step by step