The story
- Proto-Indo-European*h₂eḱ-
- Proto-Italic*akus
- Latinacus
- Proto-Indo-European*pewǵ-
- Proto-Italic*pungō
- Latinpungō
- Latinpūnctus
- Latinpūnctūra
- New Latinacūpūnctūra
- Englishacupuncture
- English todayacupuncturation
From acupuncture (verb) + -ation.
Etymology from Wiktionary, CC BY-SA 4.0.