What is a suffix for the word wrathful?

There isn't a common suffix specifically for "wrathful." However, you can add suffixes to create related words, such as:

* -ness: Wrathfulness (meaning the state of being wrathful)

* -ly: Wrathfully (meaning in a wrathful manner)

* -ity: Wrathicity (a less common word meaning the quality of being wrathful)

It's important to note that some of these suffixes might not be commonly used or might sound awkward. The best choice depends on the specific context and the desired meaning.