The story
- Proto-Indo-European*úp
- Proto-Indo-European*upér
- Proto-Germanic*uber
- Old Englishofer-
- Middle Englishover-
- Englishover-
- Proto-Indo-European*sem-
- Proto-Indo-European*sm̥-
- Latinsem-
- Latinsimplu
- Old Frenchsimple
- Middle Englishsymple
- Englishsimple
- English todayoversimple
Etymology from Wiktionary, CC BY-SA 4.0.