Hello
a prefix is something that comes before the word. for instance precook, pre is the prefix. .The 'pre' in 'prefix' is also a prefix.
An example would be, in the word pro-democracy, pro is a prefix.
inappropriate, insert, inattention, incoherence, incompatibility... to name a few...
Prefix, to add something (usually a letter or letters) added at the beginning of a word to adjust or qualify its meaning. Some examples of prefixes are:'un' as in undo, unwind, or unto.'de' as in...