Gracious
Jency is a modern variant of Jane or Jen, ultimately derived from the Hebrew name Yochanan. It shares the same etymological roots as Janet and Janice, signifying divine favor. While rare, it is often used as a creative diminutive or a standalone name in English-speaking communities.
Less common today
Jency isn't in the latest US Top 1000. It last peaked at #7,936 in 1990.
US births per 5-year period, 1990βpresent (SSA data).