Etymon
lat-memor-protoindoeuropean-yos-protoitalic-ios-old-latin-ios-latin-ius-latin-ia-latin-memoria-old-french-memoire-middle-french-memoire-french-memoirebor
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.