So if we take the Dominican monks gramatical game play of the Tetragrammon and then the latinized version
Iehovah or into Yehovah it is still less likely than Yahweh as most scholars still favour the Yahweh option. Again all agree that the vowels are stil a big GUESS!!!! in Yahweh.
The adoption of Jehovah is just too late to be credible sorry chaps looks like the manuscript evidence and history proves that the J is a very late forgery in the sense if one believes the name has any real Divine power or connotation to it.