Funny that the book "Aid To Bible Understanding" printed by Jehovah`s Witnesses admitted that the name Jehovah was not the most accurate and that Yahweh was probably a more accurate rendering.
Also its interesting that nobody in the New Testament /Christian Greek Scriptures either Jesus or his disciples nor anybody else ever used the name Jehovah in the Greek text that Jehovah`s Witnesses based their New World Translation on .
And to top it off the KI translation of the Greek Text a word for word translation of the Greek that the WTB&TS printed does not contain the name/word Jehovah not one time.
Nor does it contain the equivalent Greek four letters of the Hebrew Tetragrammaton APPEAR ANYWHERE IN THE TEXT.