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).
Arabella
Arabella was more common in the past and has since settled at a lower, steady level. All-time it's been given to 27,957 U.S. babies, the 527th most common name by sound today, peaking at 1,914 in 2014, with 1,423 in 2025.
Arabella has no common alternate spellings by sound.
Rising