The story
- Proto-West Germanic*kaiju
- Old Englishcǣġ
- Middle Englishkeye
- Englishkey
- Proto-Germanic*haldaną
- Proto-West Germanic*haldan
- Old Englishhealdan
- Middle Englishholden
- Englishhold
- Englishholder
- English todaykeyholder
Etymology from Wiktionary, CC BY-SA 4.0.