| Perkussion | percussion |
| Persuasion | persuasion |
| Diskussion | discussion |
| Konkussion | concussion |
| Prußin | Old Prussian |
| Preußin | Prussian |
| Exkursion | excursion field trip |
| Rekursion | recursion |
| Perkolation | percolation |
| Perfektion | perfection |
| Periastron | periastron |
| Perlokution | perlocution |
| Permutation | permutation |
| Persien | Persia |
| Person | person |
| Perzeption | perception |
| perkutan | percutaneous diadermic through the skin transcutaneous transdermal transdermic |
| permissiv | permissive |
| persuasiv | convincing |
| Cerussit | cerussite |