*marhaskalk (Frankish) comes from Frankish marh, 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 “*marhaskalk”, step by step
*marhaskalk traces back through 3 separate lines of ancestry.