interacademic

The story

1. Proto-Indo-European*h₁én
2. Proto-Indo-European*h₁n̥tér
3. Proto-Italic*n̥ter
4. Latininter
5. Latininter-
6. Englishinter-
7. Ancient GreekἈκάδημος (Akádēmos)
8. Ancient GreekἈκαδημία (Akadēmía)
9. Ancient GreekἈκάδημος (Akádēmos)
10. Ancient GreekἈκαδήμεια (Akadḗmeia)
11. Ancient Greekἀκαδημικός (akadēmikós)
12. Medieval Latinacadēmicus
13. Latinacadēmicu
14. Frenchacadémique
15. Englishacademic
16. English todayinteracademic

From inter- + academic.