The story
- Proto-Indo-European*h₁én
- Proto-Indo-European*h₁énteros
- Latin*interus
- Latinintrā
- Englishintra-
- Proto-Indo-European*dwóh₁
- Proto-Indo-European*trísinflu.
- Proto-Indo-European*d(w)is-
- Proto-Italic*dis-
- Latindis-
- Proto-Indo-European*med-
- Proto-Indo-European*meh₁-
- Proto-Italic*mētis
- Latinmētior
- Latindīmētior
- Latindīmēnsiō
- Englishdimension
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Englishdimensional
- English todayintradimensional
From intra- + dimensional.
Etymology from Wiktionary, CC BY-SA 4.0.