α. 1700s Reig beid, 1900s– Rg ved, 1900s– Rgved, 1900s– Rigved, 1900s– Rig ved, 1900s– Rik ved, 1900s– Rk ved.
β. 1700s– Rigveda, 1800s– Rg veda, 1800s– Rg-veda, 1800s– Rig veda, 1800s– Rig-veda, 1800s– Rik veda, 1800s– Rikveda, 1800s– Rik-veda, 1900s– Rgveda, 1900s– Rkveda, 1900s– Rk veda.
Also with capital initials and lower-case initials.