Greek and Latin 7

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Across
  1. 1. bene,eu
  2. 4. mater,matri
  3. 5. a-software-designed-to-detect-and-destroy-computer-viruses
  4. 7. ami,amo
  5. 8. pater,patri
  6. 9. circum/peri
  7. 11. il,im,in,ir,neg
  8. 17. the-state-or-ceremony-of-being married;marriage.
  9. 18. ive
  10. 19. the-distance-around-something
Down
  1. 2. ant,anti/contra,contro
  2. 3. added-to-an-existing-or-usual-amount-or-number; additional
  3. 6. not-desirable-or-optimistic
  4. 9. life;living
  5. 10. property-inherited-from-one's father-or-male-ancestor
  6. 12. ;former ‎e, ex
  7. 13. under
  8. 14. an-advantage-or-profit-gained-from-something
  9. 15. having-a-spirit-of-happiness
  10. 16. the-state-of-being-below-sea-level