Naut, nom, nomo

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Across
  1. 1. related to ships or sailing
  2. 3. sailor, ship
  3. 6. star, heavens
  4. 7. water
  5. 9. one who writes laws (History)
  6. 11. technology related to the development of deep submersible vehicles
  7. 12. science of laws and lawmaking (Philosophy)
Down
  1. 2. self-governing, subject to one's own laws
  2. 3. name, law, custom, order
  3. 4. science dealing with the order of celestial bodies
  4. 5. write, written
  5. 8. one who travels throughout the universe
  6. 10. self