The story
- Proto-Indo-European*úp
- Proto-Indo-European*upér
- Proto-Germanic*uber
- Old Englishofer-
- Middle Englishover-
- Englishover-
- Proto-Indo-European*grewt-
- Proto-Germanic*krūdaną
- Proto-West Germanic*krūdan
- Old Englishcrūdan
- Middle Englishcrouden
- Englishcrowd
- English todayovercrowd
Etymology from Wiktionary, CC BY-SA 4.0.