The story
- Proto-Indo-European*dwóh₁
- Proto-Indo-European*trísinflu.
- Proto-Indo-European*d(w)is-
- Proto-Italic*dis-
- Latindis-
- Old Frenchdes-
- Proto-Indo-European*h₂éd
- Proto-Italic*ad
- Proto-Italic*ad-
- Latinad-
- Proto-Indo-European*(H)yeh₁-
- Proto-Indo-European*(H)yéh₁kt ~ *(H)ih₁ként
- Latiniaciō
- Latiniaceō
- Latinadiaceō
- Latinadiacēns?
- Old Frencheise
- Old Frenchdesaise
- Anglo-Normandesese
- Middle Englishdisese
- English todaydisease
From Middle English disese, from Anglo-Norman desese, disaise, from Old French desaise, from des- + aise. Displaced native Middle English adle, audle (“disease”) (from Old English ādl (“disease, sickness”), see adle), Middle English cothe, coathe (“disease”) (from Old English coþu (“disease”), see coath). By surface analysis, dis- + ease.
Etymology from Wiktionary, CC BY-SA 4.0.