- (obsolete) One's constitution; the balance of humours in a person's body.
- 1624, Democritus Junior [pseudonym; Robert Burton], The Anatomy of Melancholy: […], 2nd edition, Oxford, Oxfordshire: Printed by John Lichfield and James Short, for Henry Cripps, OCLC 54573970:, I.iii.1.2:
- Some men have peculiar symptoms, according to their temperament and crasis, which they had from the stars and those celestial influences […]
- 1759, Laurence Sterne, The Life & Opinions of Tristram Shandy, Gentleman, Penguin 2003, p. 24:
- 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
- A mixture or combination.
- (linguistics) External vowel sandhi; contraction of a vowel or diphthong at the end of a word with a vowel or diphthong at the start of the following word.
- 1861, William Edward Jelf, Accidence:
- 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 […]
contraction of a vowel at the end of a word with the start of the next word