<< So this helps see how the ending of the Tetragrammaton might have appeared
(-yah or -yahu). But if we had an initial yahw- followed by a -yah or -yahu
suffix, where is the evidence that we would not have a middle vowel, as we do
in ALL other compound names that incorporate an initial yahw- element? >>
The second line should have read, "But if we had an initial yah- followed by
a -WH suffix, where is the evidence that we would not have a middle vowel
between yah- and -WH, as we do in ALL other compound names of this sort?
Indeed, when yah- is used as the initial element in compound names it always
contains the middle vowel, and that was Buchanan's point.