Ate

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Across
  1. 4. have a specified beginning
  2. 5. make or prove (an argument, statement, or theory) unsound or erroneous
  3. 6. reach a climax or point of highest development
  4. 7. make (something) look more attrative by adding extra items or images to it
Down
  1. 1. form a theory or conjecture about a subject without firm evidence
  2. 2. make (something) more complicated
  3. 3. make ineffective; nullify