The story
- Proto-Indo-European*úp
- Proto-Indo-European*upér
- Proto-Germanic*uber
- Old Englishofer-
- Middle Englishover-
- Englishover-
- Proto-Indo-European*(s)tey-?
- Latinstimulus
- Latinstimulo
- Latinstimulatus
- Englishstimulate
- English todayoverstimulate
Etymology from Wiktionary, CC BY-SA 4.0.