crasis
One's constitution; the balance of humours in a person's body.
countable, obsolete, uncountable
Some men have peculiar symptoms, according to their temperament and crasis, which they had from the stars and those celestial influences […]
A mixture or combination.
countable, uncountable
Where it comes from
From Ancient Greek κρᾶσις (krâsis, “mixture”).
Adapted from the Wiktionary entry crasis (CC BY-SA 4.0).