| Answer | Crossword Clue |
|---|---|
| EQUOID | Pertaining to primitive horses |
| phratral | pertaining to phratry (a tribal unit among primitive peoples) |
| atavic | of, pertaining to, or characterized by atavism; reverting to or suggesting the characteristics of a remote ancestor or primitive type |
| equinal | pertaining to horses |
| NISAEAN | Pertaining to ancient plain of Persia, famous for horses. |
| glanderous | of or pertaining to glanders, a disease of horses |
