/sæk/
[noun] A large bag made of strong material, used for carrying or storing things like grain, potatoes, or coal. It can also mean the act of being dismissed from a job, or the destruction of a city by an army.
One of the oldest words in the English language, 'sack' travelled through so many civilisations that it may trace back to ancient Phoenician traders.
Few words in English have travelled as far — or carried as much — as 'sack'. Its oldest traceable ancestor is the ancient Semitic root *śaq*, meaning a coarse cloth bag. This root passed into Hebrew as *saq*, a word that appears in the Old Testament when Joseph's brothers fill their bags with grain in Egypt. The Phoenicians, those great maritime traders of the ancient Mediterranean, likely spread the word westward as they sailed from port to port, trading cloth and carrying their goods in exactly the kind of rough bags the word described.
From the Semitic world, the word entered ancient Greek as *sakkos*, still meaning a bag or sack made of rough cloth. The Greeks passed it to Latin as *saccus*, where it retained the same essential meaning — a large, coarse bag. This Latin form then spread across the Roman world, branching into Old French as *sac* and into the Germanic languages that would eventually become English. Old English picked it up very early, in the form *sacc*, making it one of the rare words that entered English before the Norman Conquest of 1066.
The 'dismissal from a job' meaning — as in 'getting the sack' — is a fascinating later development, recorded in English from the early 19th century. One popular explanation is rooted in the working practices of tradesmen and labourers: a worker who was fired was said to be given back the bag (*sac* in French-influenced speech) in which he carried his personal tools to work. When your employer handed you your bag, the message was clear — you were done. Whether or not this story is literally true, the image of the bag as a container of one's working life gave the phrase its lasting power.
The military sense of 'sack' — meaning to plunder and destroy a captured city — comes from a different but equally vivid history. It entered English in the 16th century from the French phrase *mettre à sac*, literally meaning 'to put to the bag', the idea being that conquering soldiers would loot a city and stuff the plunder into sacks. This French expression likely drew on Italian *sacco*, used in the same military sense. The most famous example in the historical record is the 'Sack of Rome' in 1527, when troops of the Holy Roman Emperor Charles V looted the city — an event so shocking that it helped reshape European politics and culture.
What makes 'sack' so remarkable is not just its age, but its consistency. For at least three thousand years, across Phoenician harbours, Egyptian grain stores, Roman marketplaces, medieval workshops, and modern offices, the core image has barely shifted: a bag, a container, a thing that holds what you carry with you. Very few words connect us so directly to the daily lives of people in the ancient world, reaching from a Canaanite merchant packing his goods to a modern worker clearing out their desk.