出典:Wiktionary
Of North American origin, exact etymology uncertain.[1] The most plausible suggestions are that Native Americans (または 米国用法 Indians) called it a form of “summer” due to harvesting late plants or preparing for winter, or that European settlers coined it due to various Native American activities in this season, or due to the weather phenomenon being associated with regions inhabited by Native Americans.[2] Alternatively, the use of the word Indian may indicate something deviating from the norm: compare terms like Indian bread, Indian corn.[3]
Indian summer (複数形 Indian summers)
In the northeastern region of the United States, the term refers to a phenomenon occurring from late October through November. However, depending on the geographical region to which it is applied, it may occur from as early as September to as late as January in the northern hemisphere. Some people restrict the term to several days of warm weather after there has already been a frost.
By the 20th century, the term had displaced earlier ones like all-hallown summer, St. Luke's summer, and St. Martin's summer that had described a similar phenomenon.
Due to its supposed use of Indian to mean "abnormal" or "different from the norm", the term has seen controversy as possibly being a racist term against Indians and Native Americans.[5]
the Indian subcontinent
a Hindoo
the four hereditary social classes into which the people of India are divided, call India's four castes
インドの
インドの
the Indian Ocean
a summer-resorter
夏に
a day on which the temperature goes above 30 degrees celsius
夏の盛りに
盛夏.