(A) Latin word meaning by misadventure. (B) criminal law. Homicide per infortunium, or by misadventure, is said to take place when a man in doing a lawful act, without any intent to hurt, unfortunately kills another.
Law Dictionary – Alternative Legal Definition
By misadventure. In criminal law, homicide per infortunium is committed where a man, doing a lawful act, without any intention of hurt, unfortunately kills another. 4 Bl. Comm. 182.