Etymon
en-o-english-vaso-protoindoeuropean-ke-protoindoeuropean-kom-protoitalic-kom-protoitalic-kom-late-latin-con-protoindoeuropean-strenghder
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.