Gracious
Kaniah is a modern American coinage, likely a creative variation of the Hebrew name Kania or a blend of the prefix 'Ka-' with the biblical name Aniah. It is often interpreted as a feminine form of Hananiah, meaning 'God is gracious' or 'Yahweh has been gracious'.
Less common today
Kaniah isn't in the latest US Top 1000. It last peaked at #3,575 in 2005.
US births per 5-year period, 1990βpresent (SSA data).