I realised a few years ago how many words there are that have 2 'o's next to each other that mean something circular or at least very close to circular, as if the shape of the object may in some way influence the spelling of the word to have a circular letter. It is probably just chance, but I thought I would sign up here and ask. The ones I have thought of are things like:
Loop Hoop Moon Spoon Snood Hood Boob Hoof Loo
I know there are also thousands of words that have two 'o's that don't mean anything circular, I just wanted to see if there was a link here at all.