peritracheal

The story

1. Proto-Indo-European*per-
2. Ancient Greekπερῐ́ (perĭ́)
3. Englishperi-
4. Proto-Indo-European*dʰreh₂gʰ-
5. Proto-Indo-European*dʰréh₂gʰus
6. Proto-Hellenic*tʰrākʰús
7. Ancient Greekτρᾱχεῖᾰ (trākheîă)
8. Late Latintrāchīa
9. Medieval Latintrāchēa
10. Englishtrachea
11. Proto-Indo-European*h₂el-
12. Proto-Indo-European*h₂élisder.?
13. Englishtracheal
14. English todayperitracheal

From peri- + tracheal.