| apoptogen | apoptogenic |
| Apoptose | apoptosis |
| Apologet | apologist |
| autogen | autogenous |
| fotogen | photogenic |
| Amorbogen | cupid's bow |
| Apollon | Apollo |
| Apostatin | apostate |
| Apostelin | apostle |
| Apostolat | apostolate |
| Apokope | apocope |
| Apologie | apology apologia |
| Apoplex | stroke apoplexy |
| Apostel | apostle |
| Popcorn | popcorn pop corn popped corn popping corn |
| poppen | fuck |
| Optode | optode |
| Adoption | adoption affiliation |
| adoptieren | adopt |
| Oktogon | octagon |