Gracious
Janaisa is a modern American elaboration of the name Jane or Jana, likely influenced by the popular suffix '-aisa'. It ultimately derives from the Hebrew name Yochanan, meaning 'God is gracious'.
Less common today
Janaisa isn't in the latest US Top 1000. It last peaked at #11,388 in 2004.
US births per 5-year period, 1990βpresent (SSA data).