What does Riya mean?
Commonly given as Sanskrit-derived riya (रिया), 'singer' or 'graceful'. It is not well attested in classical Sanskrit literature, so this meaning is popular rather than firmly documented.
What does Meera mean?
Best known for the 16th-century saint-poet Mirabai, devotee of Krishna. The word mira (मीरा) is glossed 'sea, ocean, boundary/limit'. Cross-cultural: Mira also means 'peace' in Slavic and occurs in Arabic and Latin naming.