Baukasten (German) comes from German kasten, from Middle High German kaste, from Old High German kasto, from Proto-West Germanic kastō, from Proto-Germanic kazą, from Proto-Germanic kas- — to throw; bring up; toss.
Baukasten (German): toy block; building block
Definitions
toy block; building block
Ancestry of “Baukasten”, step by step
Baukasten traces back through two separate lines of ancestry.