Here are some examples of words with the prefix "fer":
* fertile: producing or capable of producing abundant vegetation or crops
* fertility: the ability to produce offspring
* fertilization: the process of uniting male and female gametes
* fertilize: to make fertile; to supply with nutrients that promote growth
* ferment: to undergo or cause chemical change, especially by the action of enzymes or microorganisms
* ferment: to be in a state of agitation or excitement