What does the italian " mo' " mean?
I'm reading Antonio Penacchi: Canale Mussolini and the author uses a veneto-dialect in direct speach.
An example: Solo John Wayne ci sarebbe voluto per liberare Lidano Sensucci. Mo' che gli fai più?
I have seen italian comments on mo' che dice: ora, adesso but I feel there must be something more.

Question

What does the italian " mo' " mean?
I'm reading Antonio Penacchi: Canale Mussolini and the author uses a veneto-dialect in direct speach.
An example: Solo John Wayne ci sarebbe voluto per liberare Lidano Sensucci. Mo' che gli fai più? 
I have seen italian comments on mo' che dice: ora, adesso but I feel there must be something more.

Answer

It means 'now'. Nothing more than that. But you can fin it in sarcastical way. I.e. 'É da mo' che é arrivato' to say he arrived a lot of time before.

Answer

Mó = Adesso
It's ,like you said, a dialect expression.
It comes from the latin : mŏdŏ, (ora, sùbito, adesso).

Answer

That's pretty much all there is to it. You could add the periphrasis: "[arrivati] a questo punto".

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