characternym

The story

1. Ancient Greekχαράσσω (kharássō)
2. Ancient Greekχαρακτήρ (kharaktḗr)
3. Latincharactēr
4. Old Frenchcaractere
5. Middle Englishcaracter
6. Englishcharacter
7. Proto-Indo-European*h₁nómn̥
8. Proto-Hellenic*ónomə
9. Ancient Greekὄνῠμᾰ (ónŭmă)
10. English todaycharacternym

From character + -nym.