intrahepatic

The story

1. Proto-Indo-European*h₁én
2. Proto-Indo-European*h₁énteros
3. Latin*interus
4. Latinintrā
5. Englishintra-
6. Proto-Indo-European*(H)yekʷ-
7. Proto-Indo-European*yókʷr̥
8. Proto-Hellenic*yêkʷər
9. Ancient Greekἧπαρ (hêpar)
10. Ancient Greekἡπατικός (hēpatikós)
11. Late Latinhepaticus
12. Middle Englishepatik
13. Englishhepatic
14. English todayintrahepatic

From intra- + hepatic.