Gender Feminine Usage English, Spanish Pronounced Pron. SEEL-yə(English) SEE-lee-ə(English) THEHL-ya(European Spanish) SEHL-ya(Latin American Spanish) Meaning & History Feminine form of the Roman family name CAELIUS. Shakespeare used it in his play As You Like It (1599), which introduced the name to the English-speaking public at large. It is sometimes used as a short form of CECILIA.