London

says Francis Crossley, is Luan-dun (Celtic), City of the Moon, and tradition says there was once a temple of Diana (the Moon) where St. Paul’s now stands. Greenwich he derives from Grian-wich (City of the Sun), also Celtic. It would fill a page to give a list of guesses made at the derivation of the word London. The one given above is about the best for fable and mythology. (See Augusta, Babylon, and Lud’s Town.)

1