Etymon
enm-counter-english-counter-protoindoeuropean-kwelh1-protoindoeuropean-kwelh1eti-protoitalic-kwelo-latin-colo-protoindoeuropean-tew-protoindoeuropean-reh2-latin-tura-latin-culturader
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.