Where does “روشن” come from?
روشن (Urdu) comes from Classical Persian روشن, from Middle Persian lwšn', from Old Persian *rauxšnā, from Proto-Iranian ráwxšnaH, from Proto-Indo-Iranian ráwkšnaH, from Proto-Indo-European lówksneh₂, from Proto-Indo-European lewḱ-, from Proto-Indo-European lewk- — bright; to shine; to see.
روشن (Urdu): light; lit; alight
Ancestry of “روشن”, step by step