The story
- Vulgar Latin · derived from*adiuxtāre
- Old French · derived fromajoster
- Middle French · borrowed fromadjouter
- English todayadjute
From Middle French adjouter (modern French ajouter), from Old French ajoster, from Vulgar Latin *adiuxtāre. The spelling was perhaps reinforced by folk-etymological association with Classical Latin adiūtō (“to help”) (which Samuel Johnson gives as the etymology and meaning). Possibly a doublet of adjust.
Words from the same roots
Vulgar Latin*adiuxtāre all →
adjust
Etymology from Wiktionary, CC BY-SA 4.0.