Etymon
pie-ne-protoindoeuropean-n-protogermanic-un-protowest-germanic-un-old-english-un-middle-english-un-english-un-latin-spolium-protoindoeuropean-h2-protoindoeuropean-eh2-protoindoeuropean-yeti-protoindoeuropean-eh2yeti-protoitalic-ao-latin-o-latin-spoliare-old-french-espoillierbor
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.