| 1 | English | nucleo- | Forming words pertaining to nuclei |
| 2 | Latin | nū̆cleus | — |
| 3 | Latin | nuculea | pertaining to a small nut |
| 4 | Latin | -eus | argentum + API → argenteus; ferrum + API →... |
| 5 | Ancient Greek | -εῖος | Forms adjectives, usually with a meaning of "of"... |
| 6 | Proto-Indo-European | -iHwós | — |
| 7 | Proto-Indo-European | -wós | Creates adjectives from verb stems |