However, here are some possibilities:
* Compound words: You could create compound words like "underfunded" or "undergrounded".
* Proper nouns: There might be some obscure proper nouns (like names or places) that fit the pattern.
* Technical terms: Certain technical fields may use words that start and end with "und."
* Foreign words: Other languages may have words that follow this pattern.
Let me know if you'd like to explore any of these possibilities!