borstvin (Dutch) comes from Dutch borst, from Middle Dutch borst, from Old Dutch brust, from Proto-West Germanic brust, from Proto-Germanic brusts, from Proto-Indo-European bʰrews- — to break.
borstvin (Dutch): pectoral fin
Definitions
pectoral fin
Ancestry of “borstvin”, step by step
borstvin traces back through two separate lines of ancestry.