Etymon
enm-anoyen-english-annoy-protoindoeuropean-h3erbh-protoindoeuropean-os-protoindoeuropean-h3orbhos-protobaltoslavic-arbas-protoslavic-orb-protoindoeuropean-yeti-protoindoeuropean-eyeti-protobaltoslavic-eitei-protoslavic-iti-protoslavic-orbiti-protoindoeuropean-oteh2-protobaltoslavic-ata-protoslavic-ota-protoslavic-orbota-old-czech-robota-czech-robota-czech-robotbor
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.