Noble natured
Adelayde is a modern spelling variation of Adelaide. It derives from the Germanic name Adalheidis, composed of the elements 'adal' meaning noble and 'heid' meaning kind, sort, or type.
Less common today
Adelayde isn't in the latest US Top 1000. It last peaked at #11,816 in 2013.
US births per 5-year period, 1990βpresent (SSA data).