| Nominative | trachea |
| Genitive | trachey |
| Dative | trachei |
| Accusative | tracheu |
| Vocative | tracheo |
| Locative | trachei |
| Instrumental | tracheou |
| Nominative | trachey |
| Genitive | tracheí |
| Dative | tracheám; tracheím |
| Accusative | trachey |
| Vocative | trachey |
| Locative | tracheách; tracheích |
| Instrumental | tracheami |