The story
- 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*lewh₁-
- Proto-Indo-European*lewHs-
- Proto-Germanic*leusaną
- Proto-Germanic*lausaz
- Englishdimensionless
- English todaydimensionlessness
From dimensionless + -ness.
Etymology from Wiktionary, CC BY-SA 4.0.