Webster's Revised Unabridged Dictionary · 1913

Metempiric

Metempiric , adjective

[Prefix met- + empiric, -ical.]

(Metaphysics) Related, or belonging, to the objects of knowledge within the province of metempirics.
If then the empirical designates the province we include within the range of science, the province we exclude may be fitly styled the metempirical. — G. H. Lewes

Also: Metempirical