| English | eng-000 |
| catagenesis | |
| 普通话 | cmn-000 | 后生作用 |
| 普通话 | cmn-000 | 退化 |
| English | eng-000 | degeneracy |
| English | eng-000 | degenerate |
| English | eng-000 | degradation |
| English | eng-000 | epigenesis |
| English | eng-000 | regression |
| English | eng-000 | retrogressive evolution |
| русский | rus-000 | инволюция |