profectio
Profectio is a Latin term that historically referred to a departure, a journey, or a setting out. In a military context, it often denoted the formal march or procession of troops from one place to another, frequently for the purpose of campaigning or deployment. This could involve the entire army moving from winter quarters to their summer positions, or a specific contingent being dispatched to a new assignment. The term implies an organized and deliberate movement rather than a spontaneous flight.
Beyond its military applications, profectio could also describe the departure of a person of importance, such