crasis

noun

1. (countable, obsolete, uncountable)One's constitution; the balance of humours in a person's body.

   “Some men have peculiar symptoms, according to their temperament and crasis, which they had from the stars and those celestial influences […]”

   “This is all that ever stagger'd my faith in regard to Yorick’s extraction, who, by what I can remember of him, and by all the accounts I could ever get of him, seem'd not to have had one single drop of Danish blood in his whole crasis”

2. (countable, uncountable)A mixture or combination.
3. (countable, uncountable)The contraction of a vowel or diphthong at the end of a word with a vowel or diphthong at the start of the following word.

   “When in a crasis, a lene consonant […] is combined with an aspirated vowel, the lene is always changed (except in the Ionic dialect) into the corresponding aspirate […]”