autumn

Latin autumnus named the harvest season, the months between summer heat and winter cold. The Romans used it freely from at least the third century BCE, and Varro mentioned it in the first century BCE when writing about agriculture. The word traces to Etruscan, a language of pre-Roman Italy with no confirmed Indo-European relatives. The Etruscans called one of their months something close to autume, and Rome's word came from there.

Etruscan survives in about 13,000 inscriptions, and the month-name parallel to autumnus is the clearest evidence for the borrowing. The Romans incorporated Etruscan vocabulary for dozens of concepts encountered through trade and conquest before 300 BCE. Old French took Latin autumnus and softened it to automne by around the 11th century. When the Norman Conquest brought French into England after 1066, automne followed.

Middle English writers used autumpne and autumne through the 13th and 14th centuries, spelling it as it sounded from the French. Chaucer used autumpne in the 1380s in The Canterbury Tales. The word competed with the native English harvest, which had named the same season for centuries before the French import arrived. By the 16th century, autumn had won the literary register, and harvest retreated to mean the crop-gathering activity specifically.

American English gradually replaced autumn with fall, a shortening of fall of the leaf, attested from the 1540s in England but preferred in America by the 1700s. British English kept autumn. The two forms now mark a transatlantic split, though both remain understood everywhere. The Etruscan root, filtered through Latin, French, and Middle English, arrived in British dictionaries in the 1600s in its current spelling and has not moved since.