Christmas Day or birthday
Nadalie is a rare variant of Natalie, which is derived from the Latin phrase 'dies natalis'. Historically, the name was given to children born on Christmas Day. While the 'Natalie' spelling is a perennial classic, this specific spelling adds a unique, modern flair.
Less common today
Nadalie isn't in the latest US Top 1000. It last peaked at #6,040 in 2006.
US births per 5-year period, 1990βpresent (SSA data).