The story
- Proto-Indo-European*h₁én
- Proto-Germanic*in
- Proto-Indo-European*ǵʰengʰ-
- Proto-Germanic*ganganąder.?
- Proto-Germanic*gagin
- Proto-Germanic*in gagin
- Proto-West Germanic*in gagin
- Old Englishonġēan
- Middle Englishayenes
- Englishagainst
- English todayagainstness
Etymology from Wiktionary, CC BY-SA 4.0.