Modern invented name; possibly a variant of Kylie or Nye.
Nylie is a contemporary American invention, likely created as a blend of the popular name Kylie and the surname-turned-first-name Nye. It may also be interpreted as a diminutive of the Welsh name Nye, meaning 'honor'. As a modern creation, it lacks a singular historical etymology but follows current naming trends favoring the 'ie' ending.
Less common today
Nylie isn't in the latest US Top 1000. It last peaked at #11,026 in 2022.
US births per 5-year period, 1990βpresent (SSA data).