crosse (Walloon) comes from Latin crusta, from Proto-Italic *krustos, from Proto-Indo-European krustós, from Proto-Indo-European krews- — to form a crust, begin to freeze.
crosse (Walloon): crust; crook, crosier; crutch
Definitions
crust; crook, crosier; crutch
Ancestry of “crosse”, step by step
crosse traces back through two separate lines of ancestry.