Etymon
pie-per-protoindoeuropean-preh2-protoindoeuropean-i-protoindoeuropean-preh2i-protoitalic-prai-protoitalic-prai-latin-praelbor
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.