Root medi words

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Across
  1. 3. middle sized
  2. 6. occurring once
  3. 8. someone who is in the middle of a conflict
  4. 9. the sea in the middle of the land
Down
  1. 1. using more than one medium
  2. 2. middle timed
  3. 4. middle of a math problem in math
  4. 5. the middle state between two things
  5. 7. in between good and bad
  6. 9. info in the middle of an event