The story
- Proto-Indo-European*h₂ent-
- Proto-Indo-European*h₂énts
- Proto-Germanic*anda-
- Proto-West Germanic*anda-
- Old Englishand-
- Old Englishon-
- Middle Englishon-
- Englishun-
- Proto-Indo-European*h₂éd
- Proto-Italic*ad
- Proto-Italic*ad-
- Latinad-
- Proto-Indo-European*ḱewh₁-
- Proto-Indo-European*ḱuh₁mósder.?
- Latincumulus
- Latincumulō
- Latinaccumulō
- Latinaccumulātus
- Middle Englishaccumylaten
- Englishaccumulate
- English todayunaccumulate
From un- + accumulate.
Etymology from Wiktionary, CC BY-SA 4.0.