How to read the band →
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).
Wendy
Wendy is now well below its former popularity. All-time it's been given to 277,798 U.S. babies, the 1,760th most common name by sound today, peaking at 11,986 in 1970, with 165 in 2025.
By sound, Wendy also includes the spellings Wendi.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).