min. 20

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Across
  1. 1. Greek numerical adverb meaning twice
  2. 4. Latin number with roman numeral IX
  3. 6. Latin number meaning 5
  4. 7. Greek number meaning 1
  5. 9. Greek number meaning 7
  6. 11. Latin numerical adverb meaning both
  7. 13. Greek number meaning 5
  8. 15. Greek number meaning 10
  9. 16. Latin word meaning no, none
  10. 17. Latin number meaning 8
  11. 18. Latin number meaning 1,000
Down
  1. 2. Latin ordinal number meaning sixth
  2. 3. Latin numerical adverb meaning one and a half
  3. 5. Latin ordinal number meaning eighth
  4. 8. Roman numeral I
  5. 9. Greek numerical adverb meaning half
  6. 10. Greek ordinal number meaning first
  7. 12. Greek ordinal number meaning second
  8. 14. Latin ordinal number meaning fourth
  9. 16. Latin word meaning nothing