| penetrieren | penetrate |
| generieren | generate |
| denitrieren | denitrify |
| zentrieren | center centre middle |
| enervieren | enervate |
| Nitrieren | nitriding |
| nitrieren | nitrate nitrify nitride |
| kontrieren | double |
| nutrieren | cherish |
| denaturieren | denature |
| zenterieren | center |
| perforieren | perforate |
| referieren | refer |
| zelebrieren | celebrate |
| paketieren | bale |
| pelletieren | pelletize |
| menstruieren | menstruate |
| perennieren | consist |
| perpetuieren | perpetuate |
| pipettieren | pipette |