Meaning

noun alluring beauty or charm (often with sex-appeal)

verb cast a spell over someone or something; put a hex on someone or something

originBorrowed from Scots glamour (“magic”), alteration of Middle English gramere (“grammar”), from Old French gramaire. Doublet of glamoury, gramarye, grammar, and grimoire. A connection has also been suggested with Old Norse glámr (“the moon", also "the name of a ghost”, poetic byname, literally “the pale one”) and glámsýni (“glamour, illusion”, literally “glam-sight”). From Grettir's Saga aka…

Etymology from Wiktionary, CC BY-SA 3.0