| Nominative | cietoksnis |
| Accusative | cietoksni |
| Genitive | cietokšņa |
| Dative | cietoksnim |
| Instrumental | cietoksni |
| Locative | cietoksnī |
| Vocative | cietoksni |
| Nominative | cietokšņi |
| Accusative | cietokšņus |
| Genitive | cietokšņu |
| Dative | cietokšņiem |
| Instrumental | cietokšņiem |
| Locative | cietokšņos |
| Vocative | cietokšņi |