Cyprus
noun: Cypriot(s)
adjective: Cypriot

Czech Republic
noun: Czech(s)
adjective: Czech

Denmark
noun: Dane(s)
adjective: Danish

Djibouti
noun: Djiboutian(s)
adjective: Djiboutian

Dominica
noun: Dominican(s)
adjective: Dominican

Dominican Republic
noun: Dominican(s)
adjective: Dominican

Ecuador
noun: Ecuadorian(s)
adjective: Ecuadorian

Egypt
noun: Egyptian(s)
adjective: Egyptian

El Salvador
noun: Salvadoran(s)
adjective: Salvadoran

Equatorial Guinea
noun: Equatorial Guinean(s) or Equatoguinean(s)
adjective: Equatorial Guinean or Equatoguinean