Where does “vähennyskelpoisuus” come from?
vähennyskelpoisuus (Finnish) comes from Finnish vähennyskelpoinen, from Finnish kelpoinen, from Finnish kelpo, from Finnish kelvata, from Proto-Finnic kelbat'ak, from Proto-Germanic helpaną, from Proto-Indo-European ḱelb- — help.
vähennyskelpoisuus (Finnish): deductibility
Ancestry of “vähennyskelpoisuus”, step by step