Finally, a word that makes sense if you think of it as a root word for contusion. Contuse (kun-tooz) is to injure without laceration; bruise.

The Rare Fare poem is:
To contuse
means to bruise.
It may hurt like sin,
but it doesn’t break the skin.

Hmm, this might be a word I can use from time to time now that I’m on blood thinners and contuse often.