The word that I found this last week is from Tallgrass by Sandra Dallas.
Acrimony: sharpness, harshness, or bitterness of nature, speech, disposition, etc.
It was used in the following sentence on page 120 of Tallgrass:
If there were more like him in Ellis, we wouldn't have such acrimony.
And then the next sentence I thought was very appropriate and made me laugh:
Do you know what that word means?
Well I actually did have a pretty good idea of what this word meant, but now I know for sure!
What new words did you find this last week?