transfictional

The story

1. Proto-Indo-European*terh₂-
2. Proto-Indo-European*térh₂t
3. Proto-Indo-European*tr̥h₂ónts
4. Proto-Indo-European*tr̥h₂n̥ts
5. Proto-Italic*trāns
6. Proto-Italic*trāns-
7. Latintrans-
8. Englishtrans-
9. Proto-Indo-European*dʰeyǵʰ-
10. Proto-Indo-European*dʰinéǵʰti
11. Proto-Italic*θingō
12. Proto-Italic*fingō
13. Latinfingō
14. Latinfictiō
15. Old Frenchficcion
16. Middle Englishficcioun
17. Englishfiction
18. Proto-Indo-European*h₂el-
19. Proto-Indo-European*h₂élisder.?
20. Englishfictional
21. English todaytransfictional

From trans- + fictional.