Cybil is a feminine name that represents a modern spelling variation of Sibyl or Sybil, derived from the Greek word 'sibylla,' meaning 'prophetess' or 'oracle.' In ancient Greek and Roman culture, sibyls were women believed to possess prophetic powers. The spelling with 'C' gained some popularity in the mid-20th century, particularly after actress Cybill Shepherd rose to fame in the 1970s. Though less common than many contemporary names, Cybil has a distinctly vintage charm while maintaining mystical undertones. The name suggests wisdom, intuition, and a connection to ancient traditions of feminine power.