There are a few possibilities:
* You might be misremembering or misspelling a real word. Could you give me more context or tell me what "panundra" is supposed to mean?
* It could be a regional dialect word or a word from another language. If you know where you heard it, that might help us figure it out.
* It could be a made-up word.
Let me know more, and I'll do my best to help!