Night beauty or lake of the night
A modern American creation likely blending the Arabic name Leila, meaning 'night,' with the popular English suffix -lynn, meaning 'lake.' It represents a fusion of traditional Middle Eastern roots with contemporary Western naming trends.
Less common today
Leilynn isn't in the latest US Top 1000. It last peaked at #9,641 in 2012.
US births per 5-year period, 1990βpresent (SSA data).