Coolest Crossword Ever

123456789101112131415161718192021
Across
  1. 3. half (Latin)
  2. 4. 100 (Greek)
  3. 5. Roman numeral for 569
  4. 7. ninth (Latin)
  5. 9. twice (Latin)
  6. 10. Romaan numeral for 1885
  7. 13. nine (Greek)
  8. 14. fourth (Latin)
  9. 18. half (Greek)
  10. 19. one (Greek)
  11. 20. four (Greek)
  12. 21. 1000 (Greek)
Down
  1. 1. both (Latin)
  2. 2. one and a half (Latin)
  3. 3. single, alone (Latin)
  4. 5. tenth (Latin)
  5. 6. two (Greek)
  6. 8. nine (Latin)
  7. 11. second (Greek)
  8. 12. three (Greek)
  9. 15. one (Latin)
  10. 16. first (Greek)
  11. 17. Coolest crossword maker (initials of GG)