| 1 | English | naltrexone | A synthetic drug, similar to morphine, which... |
| 2 | English | naloxone | An opioid inverse agonist used to counter the... |
| 3 | English | nal- | Used to form names of opioid receptor antagonists... |
| 4 | English | nalorphine | A drug used to reverse opioid overdose |
| 5 | English | -orphine | Used to form names of morphinan derivates used as... |
| 6 | English | -ine | Of or pertaining to; Used to form demonyms;... |
| 7 | French | -ine | feminine singular of -in; female equivalent of... |
| 8 | French | -é | past participle root verb suffix of regular -er... |
| 9 | Middle French | -é | — |
| 10 | Old French | -é | used to form past participles of regular -er... |
| 11 | Latin | -a | suffixed to the roots of verbs, forms agent... |
| 12 | Proto-Italic | -ā | — |
| 13 | Proto-Indo-European | -éh₂ | — |