The story
- Proto-Indo-European*h₂éd
- Proto-Italic*ad
- Proto-Italic*ad-
- Latinad-
- Latinhaereō
- Latinadhaereō
- Latinadhaesiōnem
- Frenchadhésion
- Englishadhesion
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Englishadhesional
- Proto-Indo-European*leyg-
- Proto-Germanic*līką
- English todayadhesionally
From adhesional + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.