| principle(noun, law, support, action, cause) |
| bottom(noun, cause, start, base, beginning) |
| dawning(noun, cause, start, rise, top) |
| fountain-head |
| generator(noun, cause, derivation) |
| head(noun, start, beginning, opening, introduction) |
| inspiration(noun, cause, spring, derivation, spout) |
| mainspring(noun, cause, start, reason, idea) |
| motive(noun, cause, start, reason, idea) |
| opening(noun, cause, start, rise, top) |
| original(noun, adjective) |
| specialist(noun, person, cause, point, beginning) |
| starting point(noun, expression, idiom, cause, start) |
| stock(noun, support, company, place, cause) |
| begetter(noun, person, cause, point, beginning) |
| cradle(noun, place, cause, spot, base) |
| creation(noun, support, top, property, beginning) |
| creator(noun, person, cause, reason, base) |
| descent |
| father(noun, person, cause, point, beginning) |