Etymon
pie-ne-protoindoeuropean-n-protoitalic-n-latin-in-protoindoeuropean-h1egh-protoindoeuropean-s-protoindoeuropean-h1eghs-protoitalic-eks-latin-ex-latin-ex-protoindoeuropean-bheh2-protoindoeuropean-bheh2ti-protoitalic-faor-latin-for-latin-effari
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.