Etymon
pie-per-protoindoeuropean-o-protoindoeuropean-pro-protoindoeuropean-pro-protoitalic-pro-latin-pro-protoindoeuropean-dewk-protoindoeuropean-dewkti-protoitalic-douko-latin-duco-latin-produco-protoindoeuropean-tis-protoindoeuropean-ho-protoindoeuropean-tiho-protoitalic-tio-latin-tio-latin-productioder
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.