Since I am the new owner of a nice blade, let's look at some references to knives from the Western guys.
"Long knife" was a term used often by Natives when referring to white men.

From Breckenridge:
On my return to our camp, I found Mr. Lisa furious with rage, buckling on his
knife, and preparing to return; finding that I could not dissuade, I resolved to accompany him.

From Bradbury:
Eight years ago, when we first saw the long knife (Gen. A__y) there had been war between us
and the Crows. We had killed many of them. They were as children in our hands. Your friend,
the Long Knife, offered to make peace. He gave us large presents. We consented; and since then,
the tomahawk has been buried. Our wish is still for peace. Let their answer be frank and candid.
Peace or war, is the same to us; only let them say which they prefer

From Catlin:
The scalping-knife b in a beautiful scabbard, which is carried under the belt, is the form of knife
most generally used in all parts of the Indian country, where knives have been introduced. It is a
common and cheap butcher knife with one edge, manufactured at Sheffield, in England, perhaps,
for sixpence; and sold to the poor Indian in these wild regions for a horse.

The huge two-edged knife, with its scabbard of a part of the skin of a grizzly bear’s head, letter a, is
one belonging to the famous chief of the Mandans, of whom I have before said much. The manufacture
of this knife is undoubtedly American; and its shape differs altogether from those which
are in general use.

After they had all passed, this gallant little fellow beckoned to me to dismount, and
take a seat on his shoulders, which I declined; preferring to stick to my horse’s back, which I did,
as he took it by the bridle and conducted it through the shallowest ford. When I was across, I took
from my belt a handsome knife and presented it to him, which seemed to please him very much.

From Irving:
At one time they were three entire days with-out a mouthful of food; at length they beheld a buffalo grazing
at the foot of the mountain. After manoeuvring so as to get within shot, they fired, but merely
wounded him. He took to flight, and they followed him over hill and dale, with the eagerness and
per-severance of starving men. A more lucky shot brought him to the ground. Stanfield sprang
upon him, plunged his knife into his throat, and allayed his raging hunger by drinking his blood:
A fire was instantly kindled beside the carcass, when the two hunters cooked, and ate again and
again, until, perfectly gorged, they sank to sleep before their hunting fire.

From Pattie:
In the course of the day I killed two fat
buffaloe cows. One of them had a calf, which I thought I would try to catch alive. In order to do
so, I concluded it would be well to be free from any unnecessary incumbrances, and accordingly
laid aside my shot-pouch, gun and pistols. I expected it would run, but instead of that, when I
came within six or eight feet of it, it turned around, and ran upon me, butting me like a ram, until
I was knocked flat upon my back. Every time I attempted to rise, it laid me down again. At last I
caught by one of its legs, and stabbed it with my butcher knife, or I believe it would have butted
me to death. I made up my mind, that I would never attempt to catch another buffaloe calf alive,
and also, that I would not tell my companions what a capsizing I had had, although my side did
not feel any better for the butting it had received.

Kansas Indian Recounting to a Trapper by Alfred Jacob Miller

I think long knife is better term for your blade than skinner

good read , thanks

I have gutted a deer with a 7 inch blade on a Kbar and it works but you need to be very careful not to get yourself , were a 4-5 inch blade seems much more suited for the task as you aren't working so far out of hand

I used the term 'Skinner with the apostrophe and capital S as a shortened version of Buckskinner. I knew it would get attention also.

Most of my utilitarian knives have a 4-6 inch blade.