Etymon
enm-berye-english-berry-protoindoeuropean-iskos-protogermanic-iskaz-protowest-germanic-isk-old-english-isc-middle-english-ish-english-ish-english-berryish-from-berry-ish
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.