roc (Middle French) comes from Old French roc, from Arabic رُخّ, from Persian رخ, from Middle Persian lhw', from Sanskrit रथ, from Proto-Indo-Iranian Hrátʰas, from Proto-Indo-European Hrót-h₂-os, from Proto-Indo-European Hret- — to roll; wheel; to run, roll.
roc (Middle French): rook
Definitions
rook
Ancestry of “roc”, step by step
roc traces back through two separate lines of ancestry.