Latin in Catweazle

There's a little bit here: www.catweazlefanclub.co.uk/catweazle

There's definitely a little bit of ecclesiastical Latin in 'Telling Bone' - just 'fortuitously' spoken by Catweazle to provide an opening for the vicar to respond enthusiastically (thinking Catweazle might be a member of the flock) while CW is still on his church tower The vicar responds in kind, but, its phrases only

And there's an incantation of some kind in Episode One too, while Catweazle is still in 1067-1069, whatever his home year might have been!

In episode 1 at 2'59'' Catweazle seems to say 'Besticam consolatio veni ad me - repeats veni ad me - vertat'.

Assuming that Catweazle is pronouncing the spell correctly and without ommissions, this can't be correct Latin, at least not as I know it. It would translate into something like 'Beastly consolation (or comfort or encouragement) come to me, may he turn (or change)'. Moreover, as besticam (couldn't find the word besticus in a dictionary) is accusative and consolatio is nominative, they don't fit together.

So what is Catweazle trying to do? Is he perhaps summoning or encouraging some monstrous entity to appear and then change into something else?

Medieval Latin is somewhat different from classical Latin, but if the invoked spirit has a sense for grammar, I'm not surprised that 'nothing worked'. Poor Catweazle ...

Mayhap there is a way to exonerate Catweazle (or rather Richard Carpenter) from ignorance of the Latin language in Episode 1 'The Sun in a Bottle'. First, Catweazle is just reading aloud the spell that is in his magic booook. So likely the magician who invented the spell is to be blamed. Secondly, could it be that 'besticam' belongs to a preceding sentence, which we hear only the last word of? And likewise, could 'vertat' be the first word of a third sentence? I.e.: "..... besticam. Consolatio veni ad me. Vertat ...." This at least would grammatically be correct. Admittedly, Catweazle's pronounciation doesn't sound like this at all, but hey: he probably isn't that well versed in Latin and I'm only looooking for a way out of this grammatical mess.

In Episode 6 'The Magic Face' at 22'26" Catweazle says: "Oooh, spirits of earth, air, fire and watter, I charge thee: bear me hence!" In the novelisation (Chapter 7 "The enchanting box" p.100), this spell reappears in a slightly altered Latin translation: "Venite spiritus, coeli et terrae, ignis et aquae, ab hoc loco abripite me!" (= "Come spirits, of heaven and earth, fire and water, take me away from this place!"), which is correct Latin. (Maybe a Roman would have said 'hinc' instead of 'ab hoc loco', but Catweazle most probably is reading medieval Latin).

Also, the short Latin phrases in Episode 7 'The Telling Bone' are correct:
"Venite, venite spiritus!" (= "Come, come, spirits!")
"Dum vivimus vivamus." (= "Let us live, while we live.") Mind you: the vicar is pronouncing vivimus and vivamus in exactly the same way (= "We live while we live"), which takes away the message 'seize the day'.
"terra firma" (= the same)
"Nil desperandum" (= "There is nothing to despair about.")

So Carpenter knew his Latin, or at least consulted someone who did. Therefore, I in the case of Episode 1 ("Besticam ... vertat") mayhap we should ask the jury for an acquittal: in dubio pro reo.