Words incorporating "help":
* Helpful: (adjective) providing assistance; useful.
* Helpless: (adjective) unable to help oneself; needing assistance.
* Helper: (noun) a person who helps.
* Helping: (verb) the act of providing assistance.
Related words:
* Assist: (verb) to give help or support.
* Aid: (noun or verb) help or support.
* Support: (noun or verb) help or assistance given to someone.
* Assisting: (verb) the act of giving help.
* Assistance: (noun) help or support given to someone.
* Benefactor: (noun) a person who gives money or other help to a person or cause.
* Beneficiary: (noun) a person who receives help or benefits.
* Beneficial: (adjective) helpful; advantageous.
Remember, the specific suffix or prefix you use will depend on the meaning you want to convey.