Modus operandi

Meaning

A particular way or method of doing something.

Origin

The phrase hails from Latin, meaning 'way of operating.' It gained traction in the early 20th century, particularly within law enforcement circles. Detectives and investigative journalists noticed patterns in how criminals committed their crimes. This distinctive 'way of doing things' became known as their modus operandi, a crucial clue in catching repeat offenders. It wasn't long before this precise term for a habitual method seeped into everyday language, a sharp and efficient way to describe anyone's signature style, whether they're a criminal mastermind or just a meticulous baker.