Other forms: misappropriated; misappropriating; misappropriates
When you misappropriate something, you steal it, or otherwise use it in a way its owner didn't intend.
You might hear the phrase "to misappropriate funds" on the news — usually what this means is that someone who has access to money at work has stolen some of it. A banker might misappropriate money, for example, paying himself a bonus, or the manager of a charity might misappropriate donations, using them to buy herself a new car. Misappropriate combines the prefix mis, "bad or wrong," and appropriate, "take possession of."