Gracious
Janelis is a modern elaboration of Jane or Jana, combining the traditional root with the popular '-elis' suffix common in Spanish-speaking communities. It ultimately derives from the Hebrew name Yochanan, meaning 'Yahweh is gracious'.
Less common today
Janelis isn't in the latest US Top 1000. It last peaked at #4,465 in 2010.
US births per 5-year period, 1990βpresent (SSA data).