Indian Summer
Meaning
An unseasonably warm, dry and calm weather, usually following a period of colder weather or frost in the late Autumn (or in the Southern hemisphere, where the term is less common, the late Spring).
Origin
The origin of other ‘Indian’ phrases, like Indian giver, Indian sign, are well-known as referring to North American Indians – who prefer to be called Native Americans or, in Canada, First Nations. The term Indian summer reached England in the 19th century, during the heyday of the British Raj in India. This lead to the mistaken belief that the term referred to the Indian subcontinent. In fact, the Indians in question were the Native Americans, and the term began use there in the late 18th century.