*marrfló (Old Norse) comes from Old Norse marr, from Proto-Germanic marhaz, from Proto-Germanic skalkaz, from Proto-Indo-European (s)kelH-, from Proto-Indo-European (s)kel- — to bend, crook; bent, crooked; leg, heel, knee,...
Ancestry of “*marrfló”, step by step
*marrfló traces back through two separate lines of ancestry.