Salt is a white, crystalline substance used to flavor and preserve food. Chemically, it is mostly sodium chloride and is essential in small amounts for human and animal health.
From Old English *sealt*, from Proto‑Germanic *saltą*, from Proto‑Indo‑European *sal-*, meaning 'salt'. It is one of the oldest and most widespread words in Indo‑European languages.
Salt was so precious that it shaped trade routes, wars, and even words like *salary* and *salad*. Today it’s cheap and everywhere, but historically it was life‑or‑death technology for preserving food. The simple shaker on your table is a descendant of ancient power.
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