Your explanation is absolutely ludicrous.
'Football' comes from the English words 'foot' and 'ball' which mean approximately 'foot' and 'ball' respectively. So you could translate 'football' to something like 'ball's foot', 'ball of the foot' or even 'football'
ETA: sorry to the above commenter, I didn't mean to appear aggressive but the downvotes seem to agree I have been excessive. Sorry, it was only a shitpost
Good thing we're not using any of these useless mathematics anywhere then! I'd hate to learn there are mathematics in my computer, my Internet or my lemmy!