Acceptance of mythology?

[Mister Underhill]

Stick the character of Galadriel into the world of HP, and what do you think her title would be? "Sorceress," at least.

Lush has a point here; you don't even have to put Galadriel in the world of HP. She's known as "the Sorceress of the Golden Wood" in Rohan. Éomer:

'Then there is a Lady in the Golden Wood, as old tales tell!' he said. 'Few escape her nets, they say. These are strange days! But if you have her favour, then you also are net-weavers and sorcerers, maybe.'