Gracious
Janiah is a modern American creation, likely formed by blending the name Jane or Jan with the popular '-iah' suffix found in biblical names like Mariah or Keziah. It carries the same etymological weight as Jane or John, rooted in the Hebrew name Yochanan.
Less common today
Janiah isn't in the latest US Top 1000. It last peaked at #795 in 2008.
US births per 5-year period, 1990βpresent (SSA data).