The word of the day is perfunctory, which is a formal adjective used to describe something done without energy or enthusiasm. It is often used to describe actions that are done out of habit or because they are expected. The word perfunctory can be used to describe a performance, such as a concert, that feels like it is being done without passion. An example of this is when a band's performance feels perfunctory by the time they reach the last stop of their tour. The word perfunctory can also be used to describe the ending of a film, which may not detract from the overall impact of the movie. The origins of the word perfunctory can be traced back to Latin, specifically the Late Latin word perfunctorius, which means done in a careless or superficial manner. The word perfunctorius is derived from the Latin words per- and fungi, which mean through and to perform, respectively. The Latin word fungi is also the source of other English words, including function, defunct, and fungible. The word perfunctory has been borrowed into English since the late 16th century and is still used today to describe actions that lack enthusiasm or energy. Overall, the word perfunctory is a useful term for describing situations where someone is going through the motions without much passion or interest.