| Solution | Length | |
|---|---|---|
| 4 letters | ||
| ainu | 4 | |
| 5 letters | ||
| prime | 5 | |
| maori | 5 | |
| 6 letters | ||
| bunyip | 6 | |
| primal | 6 | |
| native | 6 | |
| 7 letters | ||
| seminal | 7 | |
| primary | 7 | |
| radical | 7 | |
| primate | 7 | |
| archaic | 7 | |
| 8 letters | ||
| prenatal | 8 | |
| original | 8 | |
| pristine | 8 | |
| primeval | 8 | |
| pregnant | 8 | |
| 9 letters | ||
| clapstick | 9 | |
| primitive | 9 | |
| boomerang | 9 | |
| 10 letters | ||
| didgeridoo | 10 | |
| troglodyte | 10 | |
| INDIGENOUS | 10 | |
| primordial | 10 | |
| immemorial | 10 | |
| vernacular | 10 | |
| protohuman | 10 | |
| 11 letters | ||
| rudimentary | 11 | |
| prehistoric | 11 | |
| procreative | 11 | |
| 12 letters | ||
| autochthonic | 12 | |
| 13 letters | ||
| stone age man | 13 | |
| protohistoric | 13 | |
| 15 letters | ||
| prehistoric man | 15 | |