Greek origin words with silent letters

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Across
  1. 2. A plant that is commonly used in pies
  2. 7. The science of behaviour and mind
  3. 8. In ancient Greek meaning 'nose-horned'
  4. 10. A fictitious name usually used by an author to hide their identity
  5. 11. Can be said to be able to read minds or see the future
Down
  1. 1. The beat of music or a pattern of sounds
  2. 3. In ancient Greek meaning a mass of plant roots
  3. 4. An infection in your lungs that you can get after having a cold or flu
  4. 5. The same sounding words usually used in poetry
  5. 6. In ancient Greek meaning an epic poem
  6. 7. An extinct flying reptile
  7. 9. A quadrilateral that has all its sides the same length
  8. 11. A sacred song or hymn used in Jewish and Christian worship