| Answer | Crossword Clue |
|---|---|
| ECS | Prefixes for outside |
| ECTS | Prefixes meaning "outside." |
| OCTOS | Prefixes for eight |
| CALCS | Prefixes for limestones |
| ASTEROS | Prefixes for stars |
| PTERS | Prefixes for wings |
| ONEIROS | Prefixes for dreams |
| STERNOS | Prefixes for breastbones |
| XANTHOS | Prefixes for yellow |
| DECIS | Prefixes for tenth |
| NEOS | Prefixes for recent |
| DECAS | Prefixes for ten |
| AETOS | Prefixes for large birds |
| ATRIS | Prefixes for heart cavities |
| ISOS | Prefixes for bar and metric |
