| Apologetik | apologia apology |
| Apologet | apologist |
| Apologie | apology apologia |
| Aporetik | aporetic |
| apologetisch | apologetic |
| Apoleis | apoleis |
| Polemik | polemic |
| Politik | politics |
| Aerologie | aerology |
| Athletik | athletics |
| Phonetik | phonetics phonology |
| Apokopat | jussive |
| Apollonia | Apollonia |
| Apoplexia | apoplexy |
| Apoplexie | apoplexy |
| Apostatin | apostate |
| Apostelin | apostle |
| apoptogen | apoptogenic |
| Apokalyptik | apocalypticism |
| Apokope | apocope |