porrasmuoto (Finnish) comes from Finnish porras, from Proto-Finnic pordas, from Proto-Germanic bordaz, from Proto-Germanic burdą, from Proto-Indo-European bʰers- — top, tip, point.
porrasmuoto (Finnish): row echelon form
Definitions
row echelon form
Ancestry of “porrasmuoto”, step by step
porrasmuoto traces back through two separate lines of ancestry.