Boid on the roots R-G-G and R-G-SH

The root in the phrase ܕܓܬܐ ܕܓܬܢܝ is ܕܓܓ This is the same root as the root רג"ג in Jastrow. Have a look in a Syriac dictionary. The first word is a noun and the second a verb. I think what must have misled you is that in the second word is the OBJECT of the verb. Have a look in Payne-Smith & Margoliouth on the usage. The pronunciation of the noun is regtha, from an earlier reggetha. Although the doubling is lost in pronunciation in Syriac in this form, fem. definite, it still shows up in the fem. absolute, regga. The verb is pronounced ragthan, from an older raggathni. The structure of the verb is literally “it (fem. singular) perturbed me”.

You have correctly seen that verbs with the first two root consonants matching often have related meanings. Here you see one kind of relic of the TWO-CONSONANT ROOTS of the ancestral Afroasiatic or Proto-Hamitic-Cushitic-Semitic. The Hamitic languages (Berber, Hausa, Chad, etc.) still have the two consonant root system, e.g. in Berber the root MT “to die”. Do you notice anything here? Notice how the Semitic languages have ONLY PARTIALLY turned this into a three-consonant root. The Cushitic languages (Somali etc.) still have the two-consonant system as well.

Remember that the root רג"ש in Hebrew has two sets of meanings. It refers to perception, both by the senses and in the mind, as well as commotion or disturbance or thunder. The two sons of Zavdai were (a) capable of both hearing the sound of the thunder of Sinai, like all the Israelites; and (b) perceiving the MEANING, like Moses. (Although all the Israelites heard the meaning of the first two utterances, as Rabbinic tradition says, correctly reading a passage in Deuteronomy). Notice the Rabbinic passage quoted by Jastrow showing awareness of both meanings. Think of the title of the Gnostic treatise “Thunder, Perfect Mind”.