Definition of the word windfall

The word "windfall" has its origins in Middle English and Old Norse. In the 14th century, the term "wynned fall" referred to the falling or drifting of snow or ice. Over time, the phrase evolved to "wynnfell" or "wynnfall", meaning a sudden and unexpected event, often related to weather or natural disasters. In the 16th century, the phrase took on a different connotation, referring to a sudden and unexpected gain or benefit, often in the form of a financial windfall, such as an inheritance or a large sum of money. This sense of the word is likely related to the idea of a storm or hurricane bringing unexpected and significant changes or fortunes. Today, the term "windfall" is widely used to describe any unexpected and fortunate gain or event, whether financial or otherwise.