| Perturbation | perturbation |
| Permutation | permutation |
| Masturbation | masturbation |
| Perkolation | percolation |
| Perlustration | perlustration |
| Perspiration | perspiration |
| Persuasion | persuasion |
| Parturitio | childbirth |
| Konurbation | conurbation |
| Intubation | intubation |
| Penetration | penetration |
| Postulation | postulation |
| Restauration | restoration |
| Retardation | retardation |
| Operation | surgery operation |
| Perfektion | perfection |
| Perkussion | percussion |
| Perlokution | perlocution |
| Perseveration | perseveration |
| Perzeption | perception |