Making a savage, nomadic humanoid nasty...

How humanoid do they have to be? Do you by lycantrope mean shape shifting? That part would be easy to drop. Some kinds of furries would do. They are pretty common in fantasy.
Let's see:
- Savage
- Nomadic
- Nasty
- Humanoid
- Group oriented
- Hunters
Yea, you could very well do that with normal boring humans.

 

You don't need lycanthropes. An animalistic strain of humans would seem to do just fine. Run a quick search/replace to change "lycanthrope" into something of your own choosing and see what they look like then.

 

In a Dresden Files book, author Jim Butcher has four kinds of wolfen human-ish species, hexenwulf, loup-garou, werewolf aaaaaand ... lycanthrope. In his world, a lycanthrope is a person with the animalistic nature of a wolf [strength, etc. linked to the full moon.. of course] without having them shapeshift. Considering the research he seems to have put into the other types of wolfen peoples I'm wondering if the word lycanthrope was originally meant in the way he uses it in his books.

As Shadoe said though, you don't neeeed to invoke werewolf stigma if you don't want to, you could go with something like a wendigo myth or, make something up. There are any number of myth surrounding the kinds of people who may fit your maybe maybe not lycanthropes

I guess its just a case of picking an area to pull a myth-like story from, or simply coining a new word for your savage people.

 

Berserker - Wikipedia, the free encyclopedia
Yes, you can thank me later.

 

I'm not so sure. You could certainly take them as influence, and adapt them, but they don't fit the bill as is. Berserkers were human warriors, and likely influenced fantasy lycanthropes anyway... so I'm not sure what the suggestion is.

 

'Berserker' might be a decent name, but I think 'Ulfhednar' was the Old Norse name for those warriors. You ought to look under 'Other Terms' on Wikipedia, there are a few different names. 'Hamrammr' was a Norse word for a type of shapeshifter, for example.

 

To break even farther from the almost were-wolf/lycanthropes, you could have them as humanoid bears. I think wolves have been a bit over done while the only thing close would be Beorn from the Hobbit.

 

I think you should break it down into the basics of what lycanthropes are, going back to the origins of their mythologies and the reasons why they were so feared and where the tales came from, and then build them back up in your own way to suit your story. That way it's original but still familiar.

Honestly, the best advice I can give in this situation is form following function. For example, the function of a chair is something to sit on. As long as you are able to sit on it the form can be anything - a throne, a stool, a table chair, or a park bench. The more specific the function, the more specific the form. If the chair needs to be comfortable, classy, and fit in the medieval time period, it will probably have cushions, be embroidered, made of the finest materials, and look like something from the 1300s.

Determine what function these monsters serve in your story, and then their form can be anything. So far what you've said has included the following criteria to fill: Savage, pack-orientated, nomadic, good at tracking, fast, sharp teeth and claws, humanoid (but not human), and to look and sound scary. They could look like anything. They don't even have to look like anything that actually exists - they could have a bear's body with a wolf's head and tail, and boar's tusks and a lion's mane. They could travel in packs of family groups or they could all be a warlock's pack of hounds. They could act just like wolves but look completely different. Or look just like wolves and act completely different. The possibilities are endless.

 

If I as writing a book about shape-shifters I would possibly try looking into skinchangers, people who skin animals and take their form, that way you have something a bit more... exotic than a werewolf. Or you could try a batch of creatures which possess local animals and reveal their true form when they need to bring their pointy bits into the fray. Or people who have been enchanted to have features of predatory animals, or even weretigers or were-eagles. Or feral humanoids with magic. Or amalgams of human and animal caused by dimensional rifts or demons or nature spirits or... there's a lot of alternative shape shifters out there