I’m currently waiting for our Aga to be serviced. So I’ve picked service as my word of the day. The word service has a long and fascinating history, beginning in the Roman world and evolving through medieval feudalism to acquire its many modern meanings.

Its ultimate ancestor is the Latin servus, meaning a slave or servant. From this came servire, meaning ‘to serve’, and servitium, meaning ‘slavery’, ‘servitude’ or ‘the condition of being a servant’. The latter developed into the Old French servise, from which English acquired service during the twelfth century, following the Norman Conquest.

In medieval England, service was closely associated with the feudal system. A tenant owed service to his lord, perhaps through military duty, agricultural labour or financial payments. The relationship was not necessarily voluntary. Indeed, the word serf, describing a peasant bound to the land, shares the same Latin ancestry.

The religious meaning developed alongside these secular obligations. A church service was an act of worship offered to God. The Latin expression servitium Dei, meaning ‘service of God’, reflected the Christian understanding that believers were servants of the Almighty.

By the sixteenth century, service had acquired broader meanings. Domestic servants entered the service of wealthy households, soldiers served their monarch, and public officials performed services for the Crown. The expression ‘at your service’ became a conventional declaration of willingness to assist.

The commercial meaning emerged from the idea of performing work for another person. Today, businesses distinguish between goods and services, while customer service describes assistance provided to purchasers.

Some specialised meanings are particularly interesting. In tennis, service refers to putting the ball into play, a usage recorded in the sixteenth century. In dining, table service describes the presentation and serving of food. In engineering, servicing a machine means maintaining it in working order.

The word also appears in civil service, military service, postal service and emergency services, each retaining the fundamental notion of performing duties for others.

Perhaps the most remarkable development is the transformation of a word originally associated with slavery into one frequently expressing generosity, professionalism and public duty.

From Roman bondage to modern customer satisfaction, service illustrates how dramatically a word’s social associations can change while its underlying meaning remains recognisable.