spissitude
Density, thickness; the state or quality of being inspissated or thickened.
countable, uncountable
The cause is, for that it is over-moistened, and wanteth spissitude: and we have a merry saying, that they that go drunk to bed get daughters.
Spiritual substance or density, viewed as the fourth dimension of an object.
countable, uncountable
Bodies in and of themselves lack spissitude. But since, in nature, all bodies are permeated by spirit of some kind, the ability of a complex body to maintain its size indicates a certain, constant spissitude.
Where it comes from
From Middle English spissitude, from Old French spissitude and Latin spissitūdō, from spissus (“thick”).
Adapted from the Wiktionary entry spissitude (CC BY-SA 4.0).