Felicitas
In ancient Roman culture, felicitas (from the Latin adjective felix, "fruitful, blessed, happy, lucky") is a condition of divinely inspired productivity, blessedness, or happiness. Felicitas could encompass both a woman's fertility and a general's luck or good fortune. The divine personification of Felicitas was cultivated as a goddess. Although felicitas may be translated as "good luck," and the goddess Felicitas shares some characteristics and attributes with Fortuna, the two were distinguished in Roman religion. Fortuna was unpredictable and her effects could be negative, as the existence of an altar to Mala Fortuna ("Bad Luck") acknowledges. Felicitas, however, always had a positive significance. She appears with several epithets that focus on aspects of her divine power.
Felicitas had a temple in Rome as early as the mid-2nd century BC, and during the Republican era was honored at two official festivals of Roman state religion, on July 1 in conjunction with Juno and October 9 as Fausta Felicitas. Felicitas continued to play an important role in Imperial cult, and was frequently portrayed on coins as a symbol of the wealth and prosperity of the Roman Empire. Her primary attributes are the caduceus and cornucopia. The English word "felicity" derives from felicitas.