The story
- Proto-Indo-European*bʰeg-der.?
- Proto-Germanic*baką
- Proto-West Germanic*bak
- Old Englishbæc
- Middle Englishbak
- Englishback
- Old Norsebaggibor.?
- Old Frenchbaguebor.?
- Middle Englishbagge
- Englishbag
- English todaybackbag
Etymology from Wiktionary, CC BY-SA 4.0.