Etymon
ang-ig-middle-english-y-english-y-english-botty-english-booty-protoindoeuropean-de-protoindoeuropean-h1-protoindoeuropean-deh1-protoitalic-de-latin-de-latin-de-protoindoeuropean-deh3der
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.