The story
- Proto-Indo-European*wer-
- Proto-Indo-European*wor-tús
- Proto-Germanic*warduz
- Proto-Germanic*wardō
- Proto-Germanic*wardāną
- Frankish*wardēn
- Early Medieval Latinwardō
- Old Frenchguarder
- Middle Frenchgarder
- Old Frenchguarder
- Englishguard
- English todayguardable
Etymology from Wiktionary, CC BY-SA 4.0.