The story
- LatinMonēta
- Latinmonēta
- Old Frenchmoneie
- Old Frenchmonoie
- Anglo-Normanmuneie
- Middle Englishmoneye
- Englishmoney
- Proto-Indo-European*h₁én
- Proto-Germanic*in
- Proto-West Germanic*in
- Old Englishin
- Middle Englishin
- Englishin
- Middle Englishbothe
- Englishboth
- Proto-Germanic*puhô
- Frankish*pokō
- Old Frenchpoche
- Anglo-Normanpoket
- Middle Englishpocket
- Englishpocket
- Englishpockets
- English todaymoney-in-both-pockets
From money + in + both + pockets. The name refers to the unique shape of its silique membranes, which resemble a silver coin.
Etymology from Wiktionary, CC BY-SA 4.0.