The story
- Proto-Indo-European*ḱe?
- Proto-Indo-European*ḱóm
- Proto-Italic*kom
- Proto-Italic*kom-
- Proto-Italic*komteros
- Proto-Italic*komterād
- Latincontrā
- Old Frenchcontre-
- Anglo-Normancountre-
- Middle Englishcounter-
- Englishcounter-
- Latinterror
- Old Frenchterreur
- Middle Frenchterreur
- Middle Englishterrour
- Englishterror
- Englishterrorist
- English todaycounterterrorist
Etymology from Wiktionary, CC BY-SA 4.0.