Glam, glamour - from Scottish "gramarye", enchanting spell.
"Of old there were indeed some inhabitants of Faerie that were small (though
hardly diminutive), but smallness was not characteristic of that people as a
whole. The diminutive being, elf or fairy, is (I guess) in England largely a
sophisticated product of literary fancy. It is perhaps not unnatural that in
England, the land where the love of the delicate and fine has often reappeared
in art, fancy should in this matter turn towards the dainty and diminutive, as
in France it went to court and put on powder and diamonds. Yet I suspect that
this flower-and-butterfly minuteness was also a product of “rationalization,”
which transformed the glamour of Elfland into mere finesse, and invisibility
into a fragility that could hide in a cowslip or shrink behind a blade of grass.
It seems to become fashionable soon after the great voyages had begun to make
the world seem too narrow to hold both men and elves; when the magic land of Hy
Breasail in the West had become the mere Brazils, the land of red-dye-wood. In
any case it was largely a literary business in which William Shakespeare and
Michael Drayton played a part." (J.R.R. Tolkien, On Fairy Stories)