Does terminology exist for discriminating between words which do/don't contain a prefix/suffix?
How could I describe this difference in the synonyms 'discontinue' and 'stop'? Here, 'dis' is a prefix and 'stop' contains no affix.
More fundamentally, is there a term for words which do not contain other words/affixes as substrings?
I am also curious if a word contains an affix vs another word as a substring, if these are different concepts.