| perpetuating(increase, line, extension, persistence, continuance) |
| perpetuation(increase, line, extension, persistence, continuance) |
| persistence(extension, continuance) |
| persistency(noun, continuation) |
| persisting(increase, line, extension, persistence, continuance) |
| piggybacking |
| postscript(increase, line, extension, persistence, continuance) |
| preservation(extension, persistence, continuance) |
| preserving(increase, line, extension, persistence, continuance) |
| procreation(increase, growth, duplication, amplification) |
| producing(increase, line, extension, persistence, continuance) |
| production(increase, line, extension, persistence, continuance) |
| profiting |
| proliferation(increase, growth) |
| prolongation(extension, persistence, continuance) |
| prolonging(increase, line, extension, persistence, continuance) |
| propagation(extension, persistence, continuance) |
| protracting(increase, line, extension, persistence, continuance) |
| protraction(extension, persistence, continuance) |
| pullulating(rising, mounting, upward) |