The story
- Proto-Indo-European*h₂eḱ-
- Proto-Italic*akus
- Latinacus
- Proto-Indo-European*pewǵ-
- Proto-Italic*pungō
- Latinpungō
- Latinpūnctus
- Latinpūnctūra
- New Latinacūpūnctūra
- English todayacupuncture
Learned borrowing from New Latin acūpūnctūra, from Latin acus + pūnctūra. First attested in 1684. By surface analysis, acu- + puncture.
Etymology from Wiktionary, CC BY-SA 4.0.