Assignable

capable of being specified:
The word has no assignable meaning in our language.
capable of being attributed:
This work is assignable to a 12th-century poet.
Law. capable of being .
Historical Examples

And now I had awakened, without any assignable cause, hours before my usual time.
The Law and the Lady Wilkie Collins

Let us see whether any such infinity of evidence is assignable.
Essays: Scientific, Political, & Speculative, Vol. I Herbert Spencer

I do not wish to assert that all unfamiliar psychical states are necessarily evolutive or dissolutive in any assignable manner.
Human Personality and its Survival of Bodily Death Frederick W. H. Myers

Of him there is no assignable master; neither Hogarth nor Gillray.
George Cruikshank W. H. Chesson

So to the vision of a Poincaré the human power of prediction appears to have no assignable theoretical limit.
Progress and History Various

There was no assignable cause for his going, and he resisted it as a vagary.
Studies in the Out-Lying Fields of Psychic Science Hudson Tuttle

But this objection assumes that there never could have been more than some assignable degree of diffusion of matter.
Theism Robert Flint

When we seek the infinitely small, we divide, and call that infinitely small which is less than the least assignable quantity.
A Philosophical Dictionary, Volume 6 (of 10) Franois-Marie Arouet (AKA Voltaire)

Some children, however, are liable to attacks of nose-bleed coming on without any assignable causes.
The Physical Life of Woman: Dr. George H Napheys

Vegetable products thus constitute a magazine in which force is stored up and preserved for any assignable time.
History of the Intellectual Development of Europe, Volume II (of 2) John William Draper