Combination of Cy and Anna; or variation of Cyan
Cyanna is a modern American invention, likely created by blending the prefix 'Cy-' (from names like Cynthia or the color Cyan) with the classic name Anna. It may also be interpreted as an elaborated form of Cyan, referring to the greenish-blue color of the sea.
Less common today
Cyanna isn't in the latest US Top 1000. It last peaked at #5,082 in 2005.
US births per 5-year period, 1990βpresent (SSA data).