driftwood

The story

1. Proto-Indo-European*dʰreybʰ-
2. Proto-Germanic*drībaną
3. Proto-Germanic*driftiz
4. Old English*drift
5. Middle Englishdrift
6. Englishdrift
7. Proto-Indo-European*dwóh₁
8. Proto-Indo-European*dwi-
9. Proto-Indo-European*dʰeh₁-
10. Proto-Indo-European*h₁weydʰh₁-
11. Proto-Indo-European*(h₁)wéydʰ(h₁)us
12. Proto-Germanic*widuz
13. Proto-West Germanic*widu
14. Old Englishwidu
15. Old Englishwudu
16. Middle Englishwode
17. Englishwood
18. English todaydriftwood

From drift + wood.