The movie itself deems it of great importance.
While one aspect of his friendship with Charon is explained in a way that fits film canon — John saved Charon's life — nothing else in the comics meshes with the movies, especially the version of John's childhood we learn about in Parabellum.
With this spelling in particular, the Latin recalls a much older variant of a proverb than the Marine Corps uses— one that was considered very old even in the pre-christian times of Caesar.
His enemies have simply realized that you can take John Wick away from the weapons, but you'll never take the weapons away from John Wick.
Many of us have been confused by The tattoo across his back that reads Fortis Fortuna Adiuvat.
If you are thinking of getting this tattoo, make sure you do your research on an artist you feel comfortable with and if you are having trouble finding an artist to help you, reach out and ask us.