How were the planets named?

Mercury was named after the Roman god of travel and commerce.

Venus was named after the Roman goddess of love and beauty.

Earth is a Germanic word, which simply means "the ground".

Mars was named after the Roman god of war.

Jupiter was named after the Roman god of sky and thunder. Jupiter is also the king of Roman gods.

Saturn was named after the Roman god of time, wealth, and agriculture.

Uranus is the Greek personification of the sky.

Neptune was named after the Roman god of the sea.