exercise & exorcise

exercise (EK suhr sighz”)
1. To use frequently and repeatedly to strengthen: “She attempted to go to the gymnasium daily to exercise so she would be ready to run the marathon.”
2. To carry out an official function or duty: “He will exercise his responsibilities as vice president to the best of his ability.”
exorcise (EK sor sighz” EKS or sighz”)
To free or to get rid of something that is perceived as evil or difficult: “I joined the freedom march as a way to exorcise myself from feeling guilty about my ancestors.”
“The novel was about a priest who tried to exorcise demons from a young man and his sister.”
As an exercise of my authority as mayor, I had to arrange for a shaman to come to our town to exorcise the evil spirits believed to haunt the community.