/əˈreɪndʒ/
[verb] To put things in a particular order or position, or to make plans for something to happen. You can arrange objects on a shelf or arrange a meeting with a friend.
At its heart, 'arrange' is a military word — it once meant to draw soldiers up into battle formation.
The story of 'arrange' begins on the battlefield. The word traces back to the Old French 'arengier', which meant to draw up troops in a line or rank — to position soldiers ready for combat. This Old French word was itself built from two parts: the prefix 'a-' (meaning 'to' or 'toward') and 'reng', meaning a row, line, or rank. That word 'reng' came from Frankish, the Germanic language spoken by the Franks who ruled much of Western Europe in the early medieval period. The Frankish root was something close to 'hring', meaning a ring or circle — giving us the vivid image of warriors forming a tight ring or line around their lord.
The Frankish 'hring' was part of a wide Germanic family of words that also gave Old English 'hring', which became the modern English word 'ring'. So buried inside 'arrange' is the same ancient root as the circle of metal you wear on your finger — both words originally described something formed into a curved or ordered shape. From that shared ancestor, one word moved toward jewelry and circles, while the other marched toward military order and planning.
The word entered English from Old French in the late 14th century, during a period when English was absorbing enormous numbers of French words following the Norman Conquest of 1066. At first, 'arrange' carried its military sense quite directly — it referred to setting things or people into a proper order or formation. Gradually, however, the battlefield narrowed into the everyday world. By the 15th and 16th centuries, 'arrange' had widened to mean organising anything at all: furniture, flowers, ideas, or appointments.
A key branch of this word's journey runs through music. By the 18th and 19th centuries, 'arrange' had taken on a specialised musical meaning — to adapt a piece of music for different instruments or voices than it was originally written for. A symphony might be 'arranged' for piano, or a folk song 'arranged' for a full orchestra. This musical sense gave English the noun 'arrangement', which still carries both meanings today: an organised plan, and a musical adaptation.
The related noun 'range' shares much of this same heritage. Old French 'rengier' — a close cousin of 'arengier' — also passed into English, giving us 'range' in the sense of a row, a line of mountains, or an open expanse. The word 'ranger', as in someone who patrols a wide area, flows from the same source. What began as a Frankish word for a circular formation of fighters spread outward over centuries to describe kitchen appliances, cooking stoves, mountain chains, and the full scope of human possibility — all the way from 'in the range of possibility' to 'arrange a dinner party'.