lamppost

The story

1. Ancient Greekλᾰ́μπω (lắmpō)
2. Ancient Greekλᾰμπᾰ́ς (lămpắs)
3. Medieval Greekλαμπάδα (lampáda)
4. Late Latinlampada
5. Old Frenchlampe
6. Middle Englishlaumpe
7. Englishlamp
8. Proto-Indo-European*per-der.?
9. Proto-Indo-European*pér
10. Proto-Indo-European*pró
11. Proto-Indo-European*steh₂-
12. Proto-Indo-European*pr̥-sth₂-i-s
13. Proto-Italic*porstis
14. Proto-Indo-European*h₂ep
15. Proto-Indo-European*h₂epó
16. Proto-Indo-European*h₂pó
17. Proto-Indo-European*steh₂-
18. Proto-Indo-European*h₂pó-sth₂-i-s
19. Proto-Italic*postis
20. Latinpostis
21. Old Englishpost
22. Latinpostis
23. Old Frenchpost
24. Middle Englishpost
25. Englishpost
26. English todaylamppost

From lamp + post.