"Great article, but never guess when the facts are just a google away. Searching 'torus etymology' yielded: torus (n.) 1560s, in architecture, "large, rounded molding at the base of a column," from Latin torus "a swelling, bulge, knot; cushion, couch." https://www.etymonline.com/word/torusFor the record, I thought it was something like bagel as well."