Precious, awakening, or rock
Allayna is a modern phonetic spelling variant of Alaina or Elena. It likely draws from the Greek 'Helene' meaning light or torch, or the Germanic 'Alana' meaning precious or rock. Its usage in the US is primarily as a creative contemporary variation.
Less common today
Allayna isn't in the latest US Top 1000. It last peaked at #3,878 in 2004.
US births per 5-year period, 1990βpresent (SSA data).