The story
- Proto-Indo-European*h₂ékʷeh₂
- Proto-Italic*akʷā
- Latinaqua
- Latinaquāticus
- Middle Frenchaquatique
- Englishaquatic
- Proto-Indo-European*h₁éǵʰ
- Proto-Indo-European*h₁éǵʰs
- Proto-Italic*eks
- Latinex
- Latinex-
- Proto-Indo-European*h₂erk-
- Proto-Indo-European*h₂orkéyeti
- Proto-Italic*arkeō
- Latinarceō
- Latinexerceō
- Latinexercitium
- Old Frenchexercise
- Middle Englishexercise
- Englishexercise
- English todayaquacise
Etymology from Wiktionary, CC BY-SA 4.0.