Etymon
pie-per-protoindoeuropean-o-protoindoeuropean-pro-protoindoeuropean-pro-protoitalic-pro-latin-pro-protoindoeuropean-dewk-protoindoeuropean-dewkti-protoitalic-douko-latin-duco-latin-producoder
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.