musketeer

noun3

1. •
   (historical) A foot soldier armed with a musket.
2. •
   (historical) In 17th- and 18th-century France, a member of the royal household bodyguard.
3. •
   A comrade or fellow.

noun1

1. •
   (informal) A fan, supporter or partisan of Elon Musk.

   • This was the rock that Musk and his Musketeers planned to build their company on. — 2014