The story
- Proto-Indo-European*ǵenh₁-
- Proto-Germanic*kunją
- Proto-Germanic*kuningaz
- Proto-West Germanic*kuning
- Old Englishcyning
- Middle Englishking
- Englishking
- Proto-Indo-European*seh₁-
- Proto-Germanic*sīdaz
- Proto-Germanic*sīdǭ
- Old Englishsīde
- Middle Englishside
- Englishside
- English todaykingside
Etymology from Wiktionary, CC BY-SA 4.0.