The story
- Proto-Indo-European*dwóh₁
- Proto-Indo-European*trísinflu.
- Proto-Indo-European*d(w)is-
- Proto-Italic*dis-
- Latindis-
- Proto-Indo-European*lewk-
- Proto-Indo-European*lowkéyeti
- Proto-Italic*loukeō
- Proto-Indo-European*lewk-
- Proto-Indo-European*lukéh₁yeti
- Proto-Italic*l(o)ukēō?
- Latinlūceō
- Proto-Indo-European*dʰeh₁-
- Latinlūcidus
- Latindīlūcidus
- English todaydilucid
From Latin dilucidus, from dilucere (“to be light enough to tell objects apart”). See lucid.
Etymology from Wiktionary, CC BY-SA 4.0.