| bygone(adjective, original, old, past, venerable) |
| cardinal(adjective, head, beginning, opening, original) |
| commencing(adjective, beginning, authentic, first, previous) |
| elementary(adjective, head, beginning, original, prime) |
| erstwhile(last, original, past, primitive, venerable) |
| foremost(adjective, beginning) |
| fossil(adjective, oldness) |
| late(last, original, past, primitive, venerable) |
| new(adjective, beginning) |
| once(last, original, past, primitive, venerable) |
| onetime(last, original, past, primitive, venerable) |
| paleolithic(adjective, old, oldness) |
| preadamite |
| preglacial |
| protohistoric |
| quondam(last, original, past, primitive, venerable) |
| rudimentary(adjective, head, beginning, original, prime) |
| sometime(last, original, past, primitive, venerable) |
| starting(adjective, beginning, authentic, first, previous) |
| throwback |