- Prefix. (obsolete) (non-gloss definition, Used to form past participles of verbs) . (alternative spelling of, y-) .
- Prefix. A form of the prefix ''in-'', used before ''gn'', as in ignoble, ignominy, and ignore.
- Prefix. (Jamaica, Iyaric) (non-gloss definition, Used to transform English words into words used by Rastafarians with a special meaning) .
- Prefix. Alluding to cutting-edge or fashionable digital devices and computer programs, especially those from Apple.