Etymon
pie-h1nomn-protoitalic-nomn-latin-nomen-protoindoeuropean-h2-protoindoeuropean-eh2-protoindoeuropean-yeti-protoindoeuropean-eh2yeti-protoitalic-ao-latin-o-latin-nomino-protoindoeuropean-wos-protoindoeuropean-ihwosder
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.