Kosa (English) comes from Slovak kosa, from Proto-Slavic kosà, from Proto-Balto-Slavic *kāˀsā́ˀ, from Proto-Indo-European ḱes- — to cut off, separate; to cut up, to slaughter; to...
Ancestry of “Kosa”, step by step
Kosa traces back through 3 separate lines of ancestry.