Etymon
enm-cart-english-cart-protoindoeuropean-kwel-protoindoeuropean-kwekwleh2-protogermanic-hweulo-old-english-hweol-middle-english-whel-english-wheel-english-cartwheel-blend-english-splitwheel-blend-of-split-cartwheel
A dedicated page for this root is on the way — it will gather every word descended from it, sibling forms across daughter languages, and a branching map of the family tree.