| font(noun, cause, supply, foundation, basis) |
| mine(noun, account, supply, trust, reserve) |
| nativity(noun, cause, beginning, foundation, origin) |
| progenitor(noun, person, cause, base, beginning) |
| reason(noun, support, regulation, action, cause) |
| resource(noun, note, store, supply, suggestion) |
| stem(noun, cause, beginning, origin) |
| whence(adverb, origin, upwelling) |
| agent(noun, cause, reason, base, matter) |
| ancestor(noun, person, cause, base, beginning) |
| authorship(noun, cause, point, beginning, foundation) |
| birthplace(noun, cause, point, beginning, foundation) |
| conception(noun, beginning, stone, nut, origin) |
| groundwork(noun, cause, start, base, beginning) |
| impetus(noun, causes, upwelling) |
| infancy(noun, start, top, beginning, opening) |
| informer(noun, grass, sneak, decoy, rascal) |
| motivator(noun, cause, mover, doer, goer) |
| occasion(noun, cause, start, reason, base) |
| outsource |