Word roots

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Across
  1. 1. A person who helps others financially
  2. 3. Suffix which means without
  3. 7. Simplest form of word to which prefix/suffix is added
  4. 8. Letters added after a root word
Down
  1. 2. A word which means persistently
  2. 4. Suffix which means become
  3. 5. Suffix used for forming abstract nouns
  4. 6. Letters added in front of a root word