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).
Arielle
Arielle is now well below its former popularity. All-time it's been given to 30,921 U.S. babies, the 860th most common name by sound today, peaking at 1,631 in 1991, with 618 in 2025.
Arielle has no common alternate spellings by sound.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).