God has answered; sun
Elianys is a modern Spanish-influenced elaboration of Eliana. It likely combines the Hebrew roots of Eliana, meaning 'my God has answered', with the Greek 'helios' meaning 'sun', featuring the popular '-ys' suffix common in Caribbean and Latin American naming traditions.
Less common today
Elianys isn't in the latest US Top 1000. It last peaked at #5,728 in 2021.
US births per 5-year period, 1990βpresent (SSA data).