Christmas puzzle

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Across
  1. 5. celebrates a year passing since the founding of something
  2. 8. expressing a compliment; praising or approving.
  3. 9. relating to more than one branch of knowledge.
  4. 10. relating to the gradual development of something.
Down
  1. 1. completing or enhancing something.
  2. 2. consisting of or based on official documents.
  3. 3. relating to, enacted by, or suitable for a parliament
  4. 4. involving or causing a complete or dramatic change
  5. 6. a person sent on a religious mission, especially one sent to promote Christianity in a foreign country.
  6. 7. the body of words used in a particular language.