Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Nevaeh is now well below its former popularity. All-time it's been given to 104,381 U.S. babies, the 308th most common name by sound today, peaking at 7,174 in 2007, with 1,978 in 2025.
By sound, Nevaeh also includes the spellings Neveah, Nyvaeh.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).