What do these three words have in common?

[gruntlabor]

promt

No, that's not it; that's spelled "prompt", but it was a damn nice try, Mizmo.

 

[Mizmo]

No, that's not it; that's spelled "prompt", but it was a damn nice try, Mizmo.

About five minute after I posted I remembered the 'P' but left the post in anyway,,,,and.. spell checker did not prompt me to correct..

I am prompted to say not a widely used word.

 

[Beezer]

I give up on the word ending with 'mt'

The answer is...(drum roll)...

Dreamt

 

[That Lady in PA]

Ah, I was right! A word not widely used in the USA.