Night; or a variation of Laila meaning night beauty.
Lailey is a modern phonetic variant of the Arabic name Layla or the Persian Laila. It carries the poetic association with the night and is often interpreted as 'night beauty' in various Middle Eastern traditions. While rare in the United States, it follows the popular trend of 'L' names and double-vowel endings.
Less common today
Lailey isn't in the latest US Top 1000. It last peaked at #11,679 in 2015.
US births per 5-year period, 1990βpresent (SSA data).