In Malayalam, the word for "poor" is ദരിദ്രൻ (daridran).
Here are some other related words:
* ദാരിദ്ര്യം (daridryam): poverty
* നിർദ്ധനൻ (nirddhanan): destitute
* പാവം (paavam): poor, unfortunate (can also refer to something small or helpless)
Please let me know if you have any other questions.