Prefixes as an aid to spelling

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Across
  1. 4. not the same
  2. 6. a book about oneself
  3. 8. not relevant
  4. 9. against the law
  5. 10. before history
  6. 11. lacking in maturity
  7. 13. mad
Down
  1. 1. without logic
  2. 2. not human
  3. 3. to lack undesrtanding
  4. 5. take apart
  5. 6. opposite to clockwise
  6. 7. before a baby
  7. 10. after a baby
  8. 12. spelling mistake