Month names collection / metastudy

[Koen G]

My impression, but I would certainly appreciate Marco's input on this one, is the following:

"KL" wants to be followed by a genitive form (month's kalend) 
"... habet dies xxx" wants to be preceded by a nominative form (month name as subject)

So the month name is squished into two different formulae, one of which wants a genitive and the other a nominative. So depending on the scribe, they may end up with nominatives, genitives or a mix of both.

Essential for our purpose here is that the context (other words) demands the genitive. If my understanding of the examples you posted is correct, they even suffer from the effects of a double, conflicting context. In the VM, there is no context, only the month name as a label. There is no other text to provoke the use of a genitive.


Also, crucially, the VM forms look like nominative forms, and there is not a single one with a preferential reading as a genitive in Latin or German.