Where does “Palestinian” come from?

Palestinian derives from English Palestine, from Latin -ianus, -ius, -um, and -us, ultimately from Proto-Indo-European -yós and -ós through Proto-Italic -os.

Palestinian (English): Of, from, or pertaining to Palestine or the...

Definitions

Of, from, or pertaining to Palestine or the...

Ancestry of “Palestinian”, step by step

Palestinian traces back through two separate lines of ancestry.

via English Palestine

Step	Language	Word	Meaning
1	English	Palestine	A British colonial entity administering approximately the lands mentioned in definition 1
2	Latin	Palaestīna	—
3	Ancient Greek	Παλαιστίνη	Philistia and the surrounding region
4	Ancient Greek	Παλαιστῑ́νη	—
5	Hebrew	פְּלֶשֶׁת	Philistia, land of the Philistines
6	Hebrew	פ־ל־ש	migrate, invade

via Romanian Palestina

Step	Language	Word	Meaning
1	Romanian	Palestina	—

Words derived from “Palestinian”

Every word from Hebrew פ־ל־ש →Every word from Hebrew פְּלֶשֶׁת →Every word from Ancient Greek Παλαιστῑ́νη →