There is no Eric in Greek mythology.
Boltar is not from Greek mythology.
In Roman Mythology Poseidon was named Neptune.This is the origin of The Planet Neptune's name.
Greek Mythology is older.
Mercury/Hermes is the god of commerce, travel and thievery in Roman mythology. The planet probably received this name because it moves so quickly across the sky.Venus/Aphrodite is the Roman goddess of love and beauty. The planet is aptly named since it makes a beautiful sight in the sky, with only the Sun and the Moon being brighter.Earth is the only planet whose English name does not derive from Greek/Roman mythology. The name derives from Old English and Germanic. There are, of course, many other names for our planet in other languages.Mars/Ares is the Roman god of War. The planet probably got this name due to its red color.Jupiter/Zeus was the King of the Gods in Roman mythology, making the name a good choice for what is by far the largest planet in our solar system.Saturn/Demeter is the Roman god of agriculture and harvest.Uranus/Uranus is the ancient Greek deity of the Heavens, the earliest supreme god, father of the titans.Neptune/Poseidon, was the Roman god of the Sea. Given the beautiful blue color of this planet, the name is an excellent choice!Pluto/Hades is the Roman god of the underworld in Roman mythology. Perhaps the planet received this name because it's so far from the Sun that it is in perpetual darkness.
Earth
Earth is the only planet whose English name does not derive from Greek/Roman mythology. The name "Earth" is of Germanic origin and comes from Old English and Germanic words meaning "ground" or "soil."
Out of the old nine, I would say Earth.
Earth. Its name in English comes from Old English and Germanic origins, meaning "ground" or "soil," rather than from Greek or Roman mythology like the other planets.
Earth (Gaia) is the only planet whose English name does not derive from Greek/Roman mythology. The name derives from Old English and Germanic. There are, of course, many other names for our planet in other languages.
Earth is the only planet in our solar system whose name does not derive from Greek or Roman mythology. It is the only planet with a name that comes from English.
The word legend has a Latin origin. Myth and mythology derive from Greek.
The Greek God Zeus was named after the planet Jupiter. In Roman mythology, Jupiter is the equivalent of Zeus.
In Roman mythology, Saturn (Cronus in Greek mythology) was married to Ops (Rhea in Greek mythology).
Quite a few things. Planets, for example.
Mercury, Hermes in Greek.
Hebe is the goddess of youth in Greek mythology. She does not represent a planet.