Not prompt, but you can certainly try
Admin → Customize → Watched Words
From there you have
- block
- censor
- require approval
- flag
- link
- replace
- silence
which is very flexible, use to your tastes. I suppose we could add a “prompt” or “nag” option where it’d say
Are you sure you want to use the word “moist” in your post? This word has been known to cause problems in our community, so we urge you to consider alternatives such as “damp”.