descendible

Of property: able to pass by descent; inheritable by heirs.

The rights of men in ſociety, are neither deviſeable, nor transferable, nor annihilable, but are deſcendable only; and it is not in the power of any generation to intercept finally, and cut off the deſcent.

Able to be physically descended.

Used most often in backcountry and extreme skiing lingo, where finding a descendible line may well ensure your survival.