Stuff and nonsense MrC.
The debate about the liturgical language of the Southern Princes was settled long ago in that seminal work "Ancient languages of Atlantis a Geographical Guide" by Group Captain Herbert Wilson . As you must know he argues most cogently that the Verb "gosam" is cognate with "govam" not "gobhamn" and therefore the language must by definition be Voomish not Southern Dow.

PP