Epimetheus, The sontte of Iapetus, and brother of Prometheus.
Lewis and Short: Latin dictionary
Ĕpĭmētheus, ei, m., = *)epimhqeu/s, in the Greek mythology, a son of Iapetus and Clymene, the husband of Pandora, Hyg. Fab. praef. 142.—Whence his daughter Pyrrha is called Ĕpĭmēthis, ĭdis, f., = *)epimhqi/s, Ov. M. 1, 390.