The story
- Proto-Indo-European*h₁én
- Proto-Indo-European*h₁n̥tér
- Proto-Italic*n̥ter
- Latininter
- Latininter-
- Englishinter-
- Old Frenchtrier
- Anglo-Normantrial
- Middle Englishtrial
- Englishtrial
- English todayintertrial
Etymology from Wiktionary, CC BY-SA 4.0.