| nascence(noun, start, birth) |
| offset |
| outbreak(noun, cause, start, source, foundation) |
| preface(noun, action, start, opening, launch) |
| prime(adjective, head, opening, original, best) |
| prologue(noun, opening, launch, addition, establishment) |
| resurrection |
| seed(noun, cause, stone, source, root) |
| starting point(noun, expression, idiom, action, cause) |
| starting time(noun, expression, idiom) |
| abecedarian(simple, straightforward, basic, fundamental, uncomplicated) |
| babyhood(noun, origin, birth, dawn, youth) |
| base(noun, cause, start, well, stock) |
| beginnings |
| boundary(noun, limit, outline, border, borderline) |
| descent |
| earliest(adjective, opening, original, best, prime) |
| elemental(simple, straightforward, basic, fundamental, uncomplicated) |
| embryo(noun, cause, base, stone, well) |
| font(noun, cause, origin) |