The story
- Proto-Indo-European*h₁én
- Proto-Indo-European*h₁entér
- Proto-Indo-European*h₂én
- Proto-Indo-European*dʰeh₁-?
- Proto-Indo-European*(H)n̥dʰí
- Proto-Indo-European*(H)n̥dʰér
- Proto-Germanic*under
- Proto-West Germanic*undar
- Old Englishunder-
- Middle Englishunder-
- Englishunder-
- Proto-Indo-European*h₁én
- Proto-Italic*en
- Proto-Italic*en-
- Latinin-
- Proto-Indo-European*kleh₂w-
- Proto-Italic*klaudō
- Latinclaudō
- Latininclūdō
- Latininclūsus
- Medieval Latininclūsīvus
- Middle Frenchinclusif
- Englishinclusive
- English todayunderinclusive
Etymology from Wiktionary, CC BY-SA 4.0.