| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | certigo | certigoj |
| Accusative | certigon | certigojn |
| Dutch | betuiging; verzekering |
|---|---|
| English | affirmation; assurance; certification; reassurance |
| German | Versicherung; Zusicherung; Beteuerung; Bestätigung |
| Saterland Frisian | Fersicherenge |
| West Frisian | fersekering |