| Solution | Length | |
|---|---|---|
| 3 letters | ||
| old | 3 | |
| eon | 3 | |
| 4 letters | ||
| elms | 4 | |
| eons | 4 | |
| then | 4 | |
| 5 letters | ||
| aeons | 5 | |
| olden | 5 | |
| prior | 5 | |
| since | 5 | |
| 6 letters | ||
| remote | 6 | |
| steady | 6 | |
| rooted | 6 | |
| recent | 6 | |
| AGEOLD | 6 | |
| 7 letters | ||
| age-old | 7 | |
| ageless | 7 | |
| ancient | 7 | |
| quondam | 7 | |
| agelong | 7 | |
| archaic | 7 | |
| 8 letters | ||
| unending | 8 | |
| primeval | 8 | |
| RECEIVED | 8 | |
| sometime | 8 | |
| previous | 8 | |
| timeless | 8 | |
| 9 letters | ||
| primitive | 9 | |
| venerable | 9 | |
| true-blue | 9 | |
| unwritten | 9 | |
| unceasing | 9 | |
| 10 letters | ||
| primordial | 10 | |
| worshipful | 10 | |
| RECOGNIZED | 10 | |
| understood | 10 | |
| 11 letters | ||
| TIMEHONORED | 11 | |
| UNREMITTING | 11 | |
| traditional | 11 | |
| prehistoric | 11 | |
| 12 letters | ||
| time-honored | 12 | |
| PRESCRIPTIVE | 12 | |
| 13 letters | ||
| UNINTERRUPTED | 13 | |
| 14 letters | ||
| tried-and-true | 14 | |