The story
- Proto-Indo-European*né
- Proto-Germanic*ne
- Proto-West Germanic*ne
- Proto-Indo-European*h₂ey-
- Proto-Indo-European*h₂óyu
- Proto-Germanic*aiwaz
- Proto-West Germanic*aiw
- Proto-West Germanic*naiw
- Proto-Indo-European*wekʷ-
- Proto-Indo-European*wékʷtisder.?
- Proto-Indo-European*weǵʰ-
- Proto-Indo-European*wéǵʰtisder.?
- Proto-Germanic*wihtą
- Proto-West Germanic*wiht
- Proto-West Germanic*naiwwiht
- Old Englishnāwiht
- Old English*nōht
- Middle Englishnought
- Middle Englishnot
- Englishnot
- English todayn't
Contraction of not.
Etymology from Wiktionary, CC BY-SA 4.0.