Yes, and since I didn't know if QATTAAL had the same process I expressed my doubt if it applies here.
I'm not sure what you mean. Qattaal is known to have had an original long vowel. That is why it is long in Arabic and Aramaic. Not like davar which had short vowels.
As for DAVAR, it is relevant to the Canaanite shift as a contra example.
It's not a counterexample. It's just a word where there is no applicability of the Canaanite shift. There are no long-a's in the word.
Analogy of קמתי, קמת, קמנו, קמתם/ן to the third person forms.
Then why is there a qamatz instead of patach in קם? Most other pa'al verbs have a patach whether with or without the suffixes: אָמַר, אָמַרְתִּי. So why in קם and קמתי do we have different vowels, if the vowel in קם arose through "analogy" to קמתי?
And how would you explain the fact that in the present forms it's still קָם, קָמָה, קָמים, קָמות?
Perhaps same way, that -aayi- perhaps was elided to the same vowel? But it's also trickier because we know that there are different forms of the present tense. In some verbs, the present tense doesn't gave a long vowel at all (mostly stative verbs), and so perhaps that factored into the development here as well.
Yes, but he does say about final vowles that there seems to be anceps in many occurances. So long U sometimes occured as a short one. And that, with the fact that third person possession is OO (analogy), might do the work, but it's my speculation.
But there are no other examples of final -uu becoming -oo. It doesn't make any sense. If the long -uu became short -u, then it would have been dropped like the other final short vowels.
It was my logics to go and look for an answer in Blau's book. He made sense in past topis, so I don't see why not him.
I don't see why you are so attached to Blau. This theory is well known in Hebrew linguistics, and is considered outdated.
The theory of the Canaanite shift and its period seems to explain the case of RASHIIM too, that is that it did not apply to an unstressed AA sound. So why not.
It doesn't "explain" it, but rather the whole theory is
based on it. There is no other example of the Canaanite shift not applying to unstressed syllables. ראשים is the only one. You can't make a theory like this based off of one word.
And if you have any other explanations, as I said, I'm never against it!
I've already given them. And I will mention again below.
Are we sure the original a was long? I don't think so. Arabic, e.g., has a short a. So, it seems that the a was lengthened prior to the Canaanite shift and that may very well only have affected the singular.
My explanation was as follows:
ra’š > rāš (loss of glottal stop) > rōš (Canaanite shift)
Note this also happened with some verb forms:
ya’miru > yāmiru > yōmiru > yōmar
While in the plural the glottal stop was present until after the Canaanite shift was no longer operative.
Maybe, but then the loss of the [?] must have been very old, perhaps older than then earliest Hebrew spelling. But the Aleph is still present. Do we have any idea when the Canaanite shift happened?
The spelling of the singular was etymological.
We know the Canaanite shift was complete before the consonantal text of the Bible was established, as words that went through the Canaanite shift are very often spelled with vav (I'd estimate they tend to be alternately spelled with and without vav about 50% of the time each).
Note also that יאמר (from the example above) retained the א in spelling as well.