O.T. people of coastal Palestine, who made war on the Israelites, mid-14c., from O.Fr. Philistin, from L.L. Philistinus, from Late Gk. Philistinoi, from Heb. P'lishtim, "people of P'lesheth" ("Philistia"); cf. Akkad. Palastu, Egyptian Palusata; the word probably is the people's name for itself.
"person deficient in liberal culture," 1827, originally in Carlyle, popularized by him and Matthew Arnold, from Ger. Philister "enemy of God's word," lit. "Philistine," inhabitants of a Biblical land, neighbors (and enemies) of Israel (see Philistine). Popularized in Ger. student slang (supposedly first in Jena, late 17c.) as a contemptuous term for "townies," and hence, by extension, "any uncultured person." Philistine had been used in a humorous fig. sense of "the enemy" in Eng. from c.1600.