money-in-both-pockets

Etymology tree
Latin Monēta
Latin monēta
Old French moneie
Old French monoie
Anglo-Norman muneiebor.
Middle English moneye
English money
Proto-Indo-European *h₁én
Proto-Germanic *in
Proto-West Germanic *in
Old English in
Middle English in
English in
Middle English bothe
English both
Proto-Germanic *puhô
Frankish *pokōbor.
Anglo-Norman poche
Proto-Indo-European *-tós
Proto-Italic *-tosder.?
Latin -ittus
Anglo-Norman -ete
Anglo-Norman poketbor.
Middle English pocket
English pocket
Old English -as
Middle English -es
English -s
English pockets
English money-in-both-pockets
From money + in + both + pockets.
The name refers to the unique shape of its silique membranes, which resemble a silver coin.