Heaven spelled backwards
Nevah is a modern phonetic variation of Nevaeh, which gained popularity in the early 2000s for being 'Heaven' spelled backwards. While the original Nevaeh is more common, this spelling variation simplifies the pronunciation for some while maintaining the spiritual connection.
Less common today
Nevah isn't in the latest US Top 1000. It last peaked at #6,165 in 2010.
US births per 5-year period, 1990βpresent (SSA data).