1. courtesy a considerate and respectful manner
  2. czaritza the wife or widow of a czar
  3. xerotes the condition of not containing or being covered by a liquid
  4. certain established beyond doubt or question; definitely known
  5. Certhia type genus of the Certhiidae
  6. Cortez Spanish conquistador who defeated the Aztecs and conquered Mexico (1485-1547)
  7. certify provide evidence for
  8. courteous characterized by politeness and gracious good manners
  9. serratus any of several muscles of the trunk
  10. cerate a hard medicated paste made of lard or oil mixed with wax or resin
  11. ceratozamia a small cycad of the genus Ceratozamia having a short scaly woody trunk and fernlike foliage and woody cones; Mexico
  12. cerastes highly venomous viper of northern Africa and southwestern Asia having a horny spine above each eye
  13. Hertz German physicist who was the first to produce electromagnetic waves artificially (1857-1894)
  14. Cortes Spanish conquistador who defeated the Aztecs and conquered Mexico (1485-1547)
  15. cert an absolute certainty
  16. Ceres goddess of agriculture; counterpart of Greek Demeter
  17. Cereus genus of much-branched treelike or shrubby cacti with pronounced ribs and rounded needlelike spines and nocturnal flowers usually white
  18. hertz unit of frequency with a periodic interval of one second
  19. ceratosaur primitive medium-sized theropod
  20. Ceratopsia horned dinosaurs