Noble and kind
Adelayda is a phonetic variant of Adelaida, the Spanish and Portuguese form of Adelaide. It derives from the Germanic name Adalheidis, composed of the elements 'adal' meaning noble and 'heid' meaning kind or type.
Less common today
Adelayda isn't in the latest US Top 1000. It last peaked at #13,638 in 2017.
US births per 5-year period, 1990βpresent (SSA data).