Affixes

12345678
Across
  1. 3. A excessive belief of supernatural beings
  2. 4. Before birth
  3. 5. Words that mean the same things
  4. 6. Showing no effects or changes
  5. 7. Half of a cycle
  6. 8. A vehicle that has three wheels
Down
  1. 1. Warship that is under the water, particularly in the ocean
  2. 2. Without milk
  3. 4. Economy that no longer relies on heavy industry