| Answer | Crossword Clue |
|---|---|
| OCTO | Twice quadri- |
| TETRA | Quadri- |
| OCTA | Quadri- doubled |
| TRI | Quadri preceder |
| UNI | Quadri- quartered |
| TRI | Quadri- preceder |
| OCTO | Quadri- doubled |
| TRI | Quadri minus one |
| HEXA | Quadri- plus bi- |
| TRI | Quadri- minus one |
| OCTA | Quadri- times two |
| TETRA | Cousin of quadri- |
| HEXA | Quadri- plus two |
| TRI | One below quadri- |
| TRI | Not quite quadri- |
| TRI | Quadri- less one |
| UNI | Quadri- minus three |
| UNI | One-quarter of quadri- |
| SEPTI | Three more than quadri- |
| TRI | One less than quadri- |
| TRI | Between bi and quadri |
| UNI | One-fourth of quadri- |
| TRI | Prefix between bi- and quadri- |
