Affixes

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Across
  1. 1. underwater machine
  2. 4. to make something take place after the original date
  3. 6. before birth
  4. 7. descendants who come after you
  5. 9. interaction between two different animals
Down
  1. 1. occurring at the same time
  2. 2. not making a profit
  3. 3. half of a circle
  4. 5. belief in supernatural beings
  5. 8. bike with three wheels