←
Old English bōsm (inherited)
←
Middle English bosom (inherited)
←
Middle English bosum (mention)
←
West Frisian boezem (cognate)
←
Proto-Germanic *bōsmaz (inherited)
←
Proto-West Germanic *bōsm (inherited)
←
Proto-Indo-European *bʰewH- (derived)
←
Romanian buză (cognate)
←
Albanian buzë (cognate)
←
Saterland Frisian Bossem (cognate)
←
Saterland Frisian Bousem (mention)
→
Cimbrian pusum (cognate)
→
Saterland Frisian Bossem (mention)