[1] : The Collaborative International Dictionary of English v.0.48

crasis \cra"sis\ kr?"s?s, n. ll., temperament, fr. gr. ????,
   fr. ???? to mix.
   1. med. a mixture of constituents, as of the blood;
      constitution; temperament.
      1913 webster

   2. gram. a contraction of two vowels as the final and
      initial vowels of united words into one long vowel, or
      into a diphthong; synaeresis; as, cogo for coago.
      1913 webster

Crasis >> C Words
Crasis, definition of term: Crasis
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