Mediaeval que quidem coniunctio...

[Big Ups]

Hello,
What's the relation of coniunctio to causa existens here? I'm also not clear on how to render nec non alia multa.

que quidem coniunctio cum aliquibus coniunctionibus et eclypsibus prioribus corruptionis pernecabilis ipsius
aeris nos circumdantis cuasa existens, mortalitatem et famem nec non alia multa signant.

And indeed the conjunction, with other earlier conjunctions and eclipses, the cause arising of the air's deadly corruption
surrounding us, signifies mortality and famine, among other things.

 

[Pacifica]

Quae... coniunctio... causa existens... = "This conjunction... being the cause of..."

I'd take circumdantis with aeris rather than with corruptionis.

Nec non = "and also", "as well as"...

You forgot to translate multa.

 

[Big Ups]

Oh, the que is a quae. And, thanks for the rest.

 

[Pacifica]

Oh, the que is a quae.

Yes. E often stands for ae and oe in medieval Latin, since those had all become homophonous by then. Conversely, you can also find hypercorrections where ae or oe stands for e.