Lily flower
Lilianah is a modern elaborative spelling of Lillian, which is derived from the Latin word for the lily flower. The lily is a symbol of purity, innocence, and rebirth in various cultures. This specific spelling adds a final 'h' for a more unique, decorative appearance.
Less common today
Lilianah isn't in the latest US Top 1000. It last peaked at #7,411 in 2011.
US births per 5-year period, 1990βpresent (SSA data).