It's tricky to give a definitive list of all such words, as language is constantly evolving. However, here are some examples of words that are typically considered morphologically simple:
* Nouns: cat, dog, tree, sun, moon, water, fire, air, time, space
* Verbs: go, come, see, hear, eat, sleep, run, walk, jump, sing
* Adjectives: good, bad, big, small, hot, cold, fast, slow
* Adverbs: here, there, now, then, always, never
It's important to note that even these words might have origins in other languages (for example, "cat" comes from Old English). Also, many words that seem simple might actually have a prefix or suffix that has been absorbed into the word over time.
Here are some points to consider:
* Language evolution: Languages constantly change, and what was once a compound word might become a single, simple word.
* Etymology: The origins of a word can help determine if it's truly a root word or if it has a hidden prefix or suffix.
* Context: Even "simple" words can have different meanings depending on their context.
Ultimately, the concept of "words with no roots, prefixes, or suffixes" is more about understanding how words are formed and their history than providing a definitive list.