metamystic

The story

1. Proto-Indo-European*me
2. Proto-Indo-European*meth₂?
3. Ancient Greekμετᾰ́ (metắ)
4. Ancient Greekμετᾰ- (metă-)
5. Englishmeta-
6. Proto-Indo-European*mewH-
7. Proto-Indo-European*mewH-ye-
8. Ancient Greekμῡ́ω (mū́ō)
9. Ancient Greekμῠέω (mŭéō)
10. Ancient Greekμῠ́στης (mŭ́stēs)
11. Ancient Greekμῠστῐκός (mŭstĭkós)
12. Latinmysticus
13. Old Frenchmistique
14. Englishmystic
15. English todaymetamystic

From meta- + mystic.