Sybil

Derived from the Greek Sibylla, the title given to prophetic priestesses who delivered divine oracles in the ancient Mediterranean. The name filtered through Norman French into medieval England and resurfaced in nineteenth-century romantic literature. American parents adopted it steadily after the Civil War.

The name reads as intellectual, slightly stern, and rooted in early twentieth-century parlor culture. It peaked in 1921 before a famous 1973 book and miniseries gave it a brief cultural detour. Recent decades have repaired the association, largely thanks to English period dramas. It carries the weight of someone who owns several dictionaries and uses all of them.