craniodistal

The story

1. Proto-Indo-European*ḱer-
2. Proto-Indo-European*ḱerh₂-
3. Proto-Indo-European*ḱérh₂sō
4. Proto-Hellenic*kárahə
5. Ancient Greek*κρᾱν- (*krān-)
6. Ancient Greekκρᾱνῐ́ον (krānĭ́on)
7. Medieval Latincrānium
8. Englishcranio-
9. Proto-Indo-European*dwóh₁
10. Proto-Indo-European*trísinflu.
11. Proto-Indo-European*d(w)is-
12. Proto-Italic*dis-
13. Latindis-
14. Proto-Indo-European*steh₂-
15. Proto-Indo-European*sth₂éh₁yeti
16. Proto-Italic*staējō
17. Proto-Italic*staēō
18. Latinstō
19. Latindistō
20. Latindistāns
21. Old Frenchdistant
22. Middle Englishdistaunt
23. Englishdistant
24. Proto-Indo-European*h₂el-
25. Proto-Indo-European*h₂élisder.?
26. Englishdistal
27. English todaycraniodistal

From cranio- + distal.