Lily flower
Lyllie is a modern spelling variant of Lily, derived from the name of the flower. The flower itself has long been a symbol of purity, innocence, and rebirth in Western culture. This specific spelling adds a contemporary, decorative flair to the classic botanical name.
Less common today
Lyllie isn't in the latest US Top 1000. It last peaked at #10,314 in 2012.
US births per 5-year period, 1990βpresent (SSA data).