My God is an oath
Elisea is a feminine variation of Elisha or Eliseo, ultimately derived from the Hebrew name Elisheba. It shares the same etymological roots as Elizabeth, signifying a promise or oath made to God. While rare in the United States, it carries a melodic, multi-syllabic elegance common in Romance languages.
Less common today
Elisea isn't in the latest US Top 1000. It last peaked at #6,844 in 2008.
US births per 5-year period, 1990βpresent (SSA data).