Is painfully a suffix or suffix?

"Painfully" is not a suffix. It is an adverb, meaning it describes a verb, adjective, or other adverb.

Here's why:

* Suffixes are added to the end of a word to change its meaning or grammatical function. Examples include "-ing" (running), "-ly" (quickly), "-ness" (kindness).

* "Painfully" is formed by adding the suffix "-ly" to the adjective "painful". It modifies a verb (e.g., "He walked painfully.") or adjective (e.g., "The task was painfully difficult.")

Let me know if you have any other word puzzles!