The wagon tipped over and concussed a keg of blasting powder, and that obliterated the rest of the goods.
concussed and bloody, he had just enough drive left to get himself out.
But as I am a slight man it might have been my brain that got concussed.
At length the learned doctor was concussed by his colleagues on the subject, and he condescended to notice it.
1590s, "to shake violently," from Latin concuss-, past participle stem of concutere "to dash together, shake violently" (see concussion). Meaning "to give a concussion to the brain" is from 1680s. Related: Concussed; concussing; concussive.