| Clue | Source | Date |
|---|---|---|
| ___ a deux | ||
| Delusion or mental illness occurring simultaneously in two closely related people; French, 'double madness' (5,1,4) | ||
| ___ a deux (shared delusion) | Wall Street Journal | 20 Sep 2018 |
| ___ a deux (shared delusion) | ||
| Madness: Fr. | ||
| Silliness: Fr. |