What is the suffix for comfort?

There isn't a single, universally accepted suffix for "comfort." However, there are several suffixes that can be used to create words related to comfort, depending on the intended meaning:

* -able: This suffix indicates capability or suitability. Comfortable means "providing comfort" or "able to be comfortable."

* -ing: This suffix creates a gerund, indicating an action or process. Comforting means "providing comfort."

* -er: This suffix denotes a person or thing that performs an action. Comforter is a person or thing that provides comfort.

* -ful: This suffix indicates fullness or abundance. Comfortable means "full of comfort."

The choice of suffix will depend on the specific context and desired meaning.