Where do planet Mercury get its name from?

Answer 1

Mercury was the Classical Greek God of speed and messengers.

In the night sky the planet Mercury is the speediest planet in the Solar system.

So to match names, The Classical Greek God, Mercury, also named the planet. Mercury.

NB All the planets in the Solar system, except Earth(Terrestium) are named after Classical Greek and Roman Gods.

Venus ; The beautiful female (Goddess)

Mars ; The strong male (God)

Jupiter ; The joyful/Jovian God

Saturn ; The working/Saturnalian God

Uranus ; The Sky God

Neptune ; The Sea God

Pluto ; The Power God.

Answer 2

it got its name from the greek god Hermes who in roman latin is called mercury