←
Old English broc (cognate)
←
English brook (mention)
←
Middle English broker (inherited)
←
Middle Low German brukere (cognate)
←
Proto-West Germanic *brūkī (derived)
←
Proto-Indo-European *bʰruHg- (derived)
←
Old Dutch broke (mention)
→
English broke (back-formation)
→
Japanese ブローカー (borrowed)