n. pl. cri·ses (-sēz)
1. A crucial or decisive point or situation, especially a difficult or unstable situation involving an impending change.
2. A sudden change in the course of a disease or fever, toward either improvement or deterioration.
3. An emotionally stressful event or traumatic change in a person's life.
4. A point in a story or drama when a conflict reaches its highest tension and must be resolved.
[Middle English, from Latin, judgment, from Greek krisis, from krīnein, to separate, judge; see krei- in the Appendix of Indo-European roots.]
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.