mankinde (Middle English) comes from Middle English mankin, from Old English mancynn, from Proto-West Germanic manakuni, from Proto-Germanic manakunją, from Proto-Germanic kunją, from Proto-Indo-European ǵn̥h₁yom, from Proto-Indo-European ǵenh₁- — to produce, to beget, to give birth.
Ancestry of “mankinde”, step by step
mankinde traces back through 3 separate lines of ancestry.