| A | B |
| procrastinate | to put off doing something until a later time |
| profess | to come forward and make a public declaration |
| prologue | the introductory part of a book, play, or poem |
| promontory | the highest point of land projecting out over a body of water or land |
| propensity | a natural inclination toward |
| retroactive | having an effect on things in the past |
| retrofire | to ignite a retrorocket |
| retrogress | move backward, especially to a earlier or worse state |
| retrospect | looking back on the past |
| retrospective | looking back on the past or past events |
| pro | forward, before |
| retro | backwards |