Etymon
pie-ne-protoindoeuropean-n-protogermanic-un-protowest-germanic-un-old-english-un-middle-english-un-english-un-vulgar-latin-roma-protoindoeuropean-nos-protoitalic-nos-vulgar-latin-nus-vulgar-latin-anus-vulgar-latin-romanus-protoindoeuropean-ikos-protoitalic-ikos-vulgar-latin-icus-vulgar-latin-romanicus-vulgar-latin-e-vulgar-latin-romanice-old-french-romanz-old-french-romauntder
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.