The country is very large

>The country is very large.
>Mostly forests and swamps.
>Home of beastmen, monsters and demons.
>Beastmen are like warhammer beastmen

What would be a good name?

Russia.

Dark Woods.

Wetood

Reikland, because that's what you just described

V'tar
It meant something in a beastman language ages ago. no one remembers what, since the specific beastman race in question, despite their former prominence, is now extinct.
it just meant "Here"

The Taintlands.

Like how civilized is it? I get it's full of evil monsters but are there humans living there? Or some other race trying to get by?

Is it in evil empire that manages to control the monsters by being as cruel as they are?

Is it just an uncivilized chunk of the map home to barbarian tribes and outcasts and no one else of real note?

It'd be easier if you decide who lives there first
>What is the dominant civlization?
>If there is no native dominant civilization, what is the first Imperial Power to establish a foothold in this land?
>What is that nation's language like?
>What is their naming convention for lands?

And from that you can figure it out.

Bloarghad