A demigod or demigoddess is a part-human and part-divine offspring of a deity and a human, or a human or non-human creature that is accorded divine status after death, or someone who has attained the "divine spark" (spiritual enlightenment). An immortal demigod(-dess) often has tutelary status and a religious cult following, while a mortal demigod(-dess) is one who has fallen or died, but is popular as a legendary hero in various polytheistic religions. Figuratively, it is used to describe a person whose talents or abilities are so superlative that they appear to approach being divine. The English term "demi-god" is a calque of the Latin word semideus, "half-god". The Roman poet Ovid probably coined semideus to refer to less important gods, such as dryads. Compare the Greek hemitheos. In the ancient Greek and Roman world, the concept of a demigod did not have a consistent definition and associated terminology rarely appeared. The earliest recorded use of the term occurs in texts attributed to the archaic Greek poets Homer and Hesiod. Both describe dead heroes as hemitheoi, or "half gods". In these cases, the word did not literally mean that these figures had one parent who was divine and one who was mortal. Instead, those who demonstrated "strength, power, good family, and good " were termed heroes, and after death they could be called hemitheoi, a process that has been referred to as "heroization". Pindar also used the term frequently as a synonym for "hero". According to the Roman author Cassius Dio, the Roman Senate declared Julius Caesar a demigod after his 46 BCE victory at Thapsus. However, Dio was writing in the third century CE — centuries after the death of Caesar — and modern critics have cast doubt on whether the Senate really did this. The first Roman to employ the term "demigod" may have been the poet Ovid (17 or 18 CE), who used the Latin semideus several times in reference to minor deities. The poet Lucan (39-65) also uses the term to speak of Pompey attaining divinity upon his death in 48 BCE.