Sidelle

More popularly spelled as Sydelle or Sydell, this name is likely a diminutive of Sarah (via Sadie), Siegfriede (meaning "victorious peace"), or Sydney ("St Denis"). Alternative theories are it was inspired by the surnames Sidell ("wide recess; wide valley") and Seidel (either from Siegfried or a German word meaning "tankard"), or that it is inspired by the Greek Sybil (via Cedella or Sidillia).

Pronounced sih-DEL.