You might be thinking of a similar word, "laborer", which is a noun meaning a person who does manual work.
Perhaps you're looking for a suffix related to work or labor? There are a few possibilities:
* -er: This suffix is commonly used to form nouns that denote people who do something, like "worker", "baker", or "teacher".
* -or: This suffix is also used to form nouns denoting people who do something, like "operator", "actor", or "collector".
* -ary: This suffix can be used to form nouns related to work or activity, like "library", "sanctuary", or "dictionary".
Let me know if you have a specific word or concept in mind, and I can help you find the correct suffix.