The story
- Proto-Indo-European*welh₁-
- Proto-Indo-European*weyh₁-influ.
- Proto-Italic*welō
- Latinvolō
- Medieval Latinvolitiō
- Frenchvolition
- Englishvolition
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Englishvolitional
- Proto-Indo-European*leyg-
- Proto-Germanic*līką
- English todayvolitionally
From volitional + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.