międzymorze (Polish) comes from Polish morze, from Proto-Slavic moře, from Proto-Balto-Slavic *mári, from Proto-Indo-European móri, from Proto-Indo-European mer- — to die; to disappear; sea, lake, wetland.
międzymorze (Polish): isthmus
Definitions
isthmus
Ancestry of “międzymorze”, step by step
międzymorze traces back through two separate lines of ancestry.