Literally means, "I AM."
It should be noted that God declared Himself to Moses using this name, and Jesus also declared Himself to the Jewish officials using this name.
- Exodus 3:14-15
"Jesus said to them, 'Most assuredly, I say to you, before Abraham was, I AM.'"
- John 8:58
"Jehovah" is a pronunciation that has evolved as a result of time, multiple translations from one language to another, and an ignorance of the Masorites inserting vowels for alternate, substitute titles.
"Yahweh" is not a title, rather it is the creator's personal name. It means "I AM WHO I AM" and is His name FOREVER (Exodus 3:14-15); it does NOT mean "Lord" ("Baal" = "Lord") and "God" is the exact pronunciation of G-a-D, the false deity spoken of in ISAIAH 65:11 sometimes translated as "that Troop", "Fortune" or "Fate".
Why not simply call the creator by His actual name?