rok (Middle English) comes from Old French roche, 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.
rok (Middle English): mist; vapour; drizzle; smoke; fumes
Definitions
mist; vapour; drizzle; smoke; fumes
Ancestry of “rok”, step by step
rok traces back through two separate lines of ancestry.