Etymology means basically studying how a word has evolved historically. So I think the answer will be DERIVATION.
Answer:
Community needs:
*Lawn mowing
*Dog walking
* Neighborhood watch
* Community garden
* Maybe older residents may need help getting groceries or walking their dogs
Explanation:
I also found this website you can take a look at <em>"http://www.altamesa.org/connect/ministries/neighborhood-needs/"</em>
Answer:
then i inform the man whose wallet is going to be stolen. and suggest him to keep his wallet in safe place.