fivepenny

The story

1. Proto-Indo-European*pénkʷe
2. Proto-Germanic*fimf
3. Proto-West Germanic*fimf
4. Old Englishfīf
5. Middle Englishfyf
6. Englishfive
7. Ancient Greekπᾰτᾰ́νη (pătắnē)
8. Latinpatina
9. Latinpanna?
10. Latinpannus?
11. Proto-Germanic*panningaz
12. Proto-West Germanic*panning
13. Old Englishpeniġ
14. Middle Englishpeny
15. Englishpenny
16. English todayfivepenny

From five + penny.