Gracious
Janesia is a modern American elaboration of Jane, which ultimately derives from the Hebrew name Yochanan. It combines the classic root with the popular '-esia' suffix to create a more rhythmic, contemporary sound. While it retains the traditional meaning of divine favor, its structure is distinctly modern.
Less common today
Janesia isn't in the latest US Top 1000. It last peaked at #8,813 in 1997.
US births per 5-year period, 1990βpresent (SSA data).