The story
- Proto-Indo-European*né
- Proto-Germanic*ne
- Proto-Indo-European*ís?
- Proto-Indo-European*h₁óynos
- Proto-Germanic*ainaz
- Proto-Germanic*nainaz
- Proto-West Germanic*nain
- Old Englishnān
- Middle Englishnon
- Old Englishnān
- Old Englishnān-
- Middle Englishnon-
- Englishnon-
- Proto-Indo-European*h₁es-
- Proto-Indo-European*h₁ésti
- Proto-Indo-European*bʰuH-
- Proto-Indo-European*bʰúHt
- Proto-Italic*ezom~*som
- Old Latinesum
- Latinsum
- Latin*essēns
- Latinessentia
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Late Latinessentiālis
- Englishessential
- English todaynonessential
Etymology from Wiktionary, CC BY-SA 4.0.