YHWH is not in reality a word, but is known as the "tetragrammaton", the four consonants standing for the ancient Hebrew name of God commonly referred to as "Jehovah" or "Yahweh". The Proper Name of God.
The original Hebrew test was not vocalized. YHWH was considered too sacred to pronounce; so "Adonai" (my Lord) was substituted in reading. When eventually a vowel system was invented, since the Hebrews had forgotten how to pronounce YHWH, they substituted the vowels for "Adonai" making "Jehovah", a form first attested to in 1520 A.D. when it was introduced by the Galatinus.
Many recent scholars explain the meaning as "the one bringing into being", "life giver", "giver of existence", "creator", "he who brings to pass", "performer of his promises", 'he who causes to fall, rain or lightning', but most scholars take it to be 'the one who is: i.e. the absolute and unchangeable one", "the existing, ever-living". "the one ever coming into manifestation (as the God of redemption.)
Jehovah is God's most common name. It occurs 6,823 times. The self-exixtent one, the God of the covenant. (Genesis 2 4)
The nine compound names of Jehovah are:
Jireh: The Lord wil1 provide - Genesis 22 I 3- 14 "Jehovah-jireh"
Other names of GodElohem- used 2,570 times, refers to God's power and might. Reference: Genesis 1:1 Psalm 19:1
Used by History's first sinner (Satan). Isaiah 1413-14, "I will be like the Most High God".
Roi- The strong one who sees. In Genesis 16 an angered and barren Sarai had cast into the wilderness her pregnant and arrogant hand-maiden Hagar. When all hope for survival had fled, this pagan Egyptian girl was visited and ministered to be El Roi himself -- the Strong God who sees. Genesis 16:13 "And she called the name of the Lord that spake unto her, Thou God seest me: for she said, Have I also here looked after him that seeth me?"
Shaddai- The breasted One. Used forty-eight times in the Old Testament. The Hebrew word "shad" is often used to designate the bosom of a nursing mother. Genesis 17:1 "the Lord appeared to Abram, and said unto him, I am the Almighty God;" Psalm 91:1 "He that dwelleth in the secret place of the most High shall abide under the shadow of the Almighty."
Olam- The Everlasting God. Isaiah 40:28-31 "Has thou not known? Hast thou not heard, that the Everlasting God, the Lord, the Creator of the ends of the earth, fainteth not, neither is weary?"
Adonai- Master, Lord. God owns all his creation. Malachi 1:6 "A son honoureth his father, and a servant his master: if then I be a father, where is mine honour? and if I be a master, where is my fear? saith the Lord of hosts ...:"
The Hebrew Old Testament name "Adonai" and its Greek New Testament counterpart "Kurios" describe the relationship between master and slave. "Adonai" thus carries with it a twofold implication. The master has a right to expect obedience. "In Old Testament times the slave was the absolute possession of his master, having no rights of his own. His chief business was to carry out the wishes of his master
The slave may expect provision. "The slave had no worry of his own. It was the master's business to provide food, shelter, and the necessities of life. Since the slave is the possession of the master, his needs become the masters.