| Solution | Length | |
|---|---|---|
| 3 letters | ||
| old | 3 | |
| 4 letters | ||
| eden | 4 | |
| adam | 4 | |
| then | 4 | |
| ooze | 4 | |
| 5 letters | ||
| prime | 5 | |
| prior | 5 | |
| 6 letters | ||
| forest | 6 | |
| primal | 6 | |
| savage | 6 | |
| AGEOLD | 6 | |
| recent | 6 | |
| virgin | 6 | |
| 7 letters | ||
| radical | 7 | |
| seminal | 7 | |
| primary | 7 | |
| ancient | 7 | |
| leading | 7 | |
| quondam | 7 | |
| archaic | 7 | |
| 8 letters | ||
| pristine | 8 | |
| sometime | 8 | |
| pregnant | 8 | |
| stoneage | 8 | |
| prenatal | 8 | |
| previous | 8 | |
| 9 letters | ||
| primitive | 9 | |
| 10 letters | ||
| evangeline | 10 | |
| aboriginal | 10 | |
| primordial | 10 | |
| protohuman | 10 | |
| INDIGENOUS | 10 | |
| 11 letters | ||
| procreative | 11 | |
| prehistoric | 11 | |
| rudimentary | 11 | |
| 12 letters | ||
| autochthonic | 12 | |
| 13 letters | ||
| protohistoric | 13 | |
| old-fashioned | 13 | |