| provenience(noun, cause, start, point, well) |
| rudimental(adjective, start, simple, authentic, first) |
| showtime |
| stem(noun, cause, origin) |
| threshold(noun, action, start, borderline, frontier) |
| hatching(noun, verb, adjective, originating) |
| appearance(start, development, growth, arrival, emergence) |
| arising(discharge, waste, escape, commencement, emergence) |
| basis(noun, action, cause, start, top) |
| begin |
| debut(noun, appearance, start, opening, addition) |
| establishment(noun, start, opening, addition, origin) |
| foundation(noun, cause, start, reason, base) |
| generation(noun, cause, origin) |
| get-go |
| inaugurating(verb, building, originating) |
| incipiency(noun, act, start, process) |
| initiatory(adjective, start, opening, original, first) |
| launch(noun, act, start, process, opening) |
| maiden(adjective, earliest) |