Erato is known in Greek mythology. She was the muse of love poetry. She belonged to Apollo's retinue and, together with nine Olympic muses, she graced human-divine feasts and feasts of the gods with her singing. Erato's father is believed to be Zeus. She had eight sisters.
Ether is a mythological character starting with the letter E. He was the god of bright light. Ether's father was Erebus and his mother Nyx. He is described as the personification of the higher celestial regions, his father of underground darkness, and his mother of night darkness. Ether's sister was the goddess of the day, and her name was Hemera.