Modern invented variant of Azalea, the flowering shrub whose name derives from Greek azaleos (dry).
Azaylah is a richly layered modern name that draws on at least two distinct traditions. Its most vivid etymological relative is Azalea, the flowering shrub whose name derives from the Greek "azaleos," meaning dry — a reference to the plant's preference for dry soil, or perhaps to the dry, papery texture of its petals. Azalea entered English botanical vocabulary in the eighteenth century with Carolus Linnaeus's systematic classification of plants, and from there it made the slow journey into personal naming that many flower names have traveled.
The alternative thread connects to Hebrew: Azaliah (עֲזַלְיָה) appears in the Second Book of Kings as the father of the scribe Shaphan, and carries the meaning "whom God has reserved" or "near to God." Azaylah extends both these sources with a creative spelling that adds the distinctively modern "ay" — a vowel expansion that softens the name and gives it an extra syllable of breath. The name belongs to a broader flowering of names in the Aza- prefix space: Azalea, Azara, Azaria, Azariah, Azalea — all carrying that bright, slightly exotic opening phoneme that has drawn parents seeking something that sounds both ancient and fresh simultaneously.
In contemporary usage, Azaylah tends to be given to girls and is particularly popular in African American naming communities, where creative spelling and phonetic elaboration have long been used as forms of cultural expression and individuality. Rapper Iggy Azalea's adoption of the flower name as her stage persona gave the Aza- prefix additional cultural cachet in the early 2010s. Azaylah sits beautifully in this moment: botanical, Biblical, and wholly contemporary at once.