I read somewhere that the ´G´ stood for Giza.
Giza was a Masonic temple complex (some believe) where initiates were given the secret to enter into eternal life. Hence the 33rd degree of Freemasonary ceremony simulates resurrection into eternal life.
Now it is a ruin which archeologists think is a complex of tombs...even though some archeologists were, or are still, believers in the Giza legend.
Nowadays Freemasonary is little more than a mens´ club for the idle rich and powerful...at least the mainstream Freemasonary is.