Etymon
pie-ne-protogermanic-ne-protoindoeuropean-is-protoindoeuropean-h1oynos-protogermanic-ainaz-protogermanic-nainaz-protowest-germanic-nain-old-english-nan-middle-english-non-old-english-nan-old-english-nan-middle-english-non-english-non-protogermanic-skamo-protowest-germanic-skamu-old-english-scamu-protoindoeuropean-pleh1-protoindoeuropean-nos-protoindoeuropean-plh1nos-protogermanic-fullaz-protogermanic-fullaz-old-english-ful-old-english-sceomfull-middle-english-schameful-english-shameful-english-nonshameful-from-non-shameful
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.