1992, Rudolf M[athias] Schuster,The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, Chicago, Ill.:Field Museum of Natural History,→ISBN, page viii:
The repeated exposure, overdecades, to most taxa here treated has resulted in repeated modifications of both diagnoses and discussions, as initial ideas of the various taxa underwent—often repeated—conceptual modification.
Thru May: 1920s — TheDecade That Roared. New exhibition portraying historical events and everyday life during the Roaring Twenties.
2013 March, David S. Senchina, “Athletics and Herbal Supplements”, inAmerican Scientist[1], volume101, number 2, archived fromthe original on16 May 2013, page134:
Athletes' use of herbal supplements has skyrocketed in the past twodecades.
2020 January 2, Paul Stephen, “A great place to work”, inRail, page29:
Some of these employees have been with the company fordecades, which made the company's claims that it offers good training, positive management and excellent job security and benefit packages all the more compelling.
We would pick adecade / We wished we could live in instead of this / I'd say the 1830s but without all the racists
2025 July 16, Daniel Dale, “Fact check: Trump tells fictional story about his uncle and the Unabomber”, inCNN[2], archived fromthe original on18 July 2025:
President Donald Trump likes to boast about the brilliance of his late uncle John Trump, who spentdecades as a professor of electrical engineering at the renowned Massachusetts Institute of Technology (MIT). And when speaking about all manner of subjects, the president likes to make up stories filled with dramatic but fictional details.[…] First, the president’s uncle died in 1985. Kaczynski was publicly revealed as the Unabomber more than adecade later, in 1996, when he was captured; before that, he had lived as a recluse in the Montana wilderness.
2002,Colin Jones,The Great Nation, Penguin, published2003, page481:
The year was divided up into twelve months renamed after the seasons [...]; each month comprised three ‘decades’ of ten days – with thedécadi replacing Sundays as a day of rest; and each day was reconsecrated to a natural product or farming tool or technique.
Althoughadecade may refer to any group of ten years, it often particularly refers to the informal ten-year periods of the calendar whose last digits run from 0 to 9. Some style guides may prefer thatdecade refers exclusively to such calendar periods whiledecennium,decennary, etc. refers to ten-year periods in other contexts. Similarly, aquinquennium etc. may be any five-year period, whereaspentad andquintade are used for the two halves of a calendrical decade.
It should be noted that the method of computing a decade is distinguished from the proper computation ofcenturies andmillennia, which run from 1 to 0. The 1st century began with the year 1 and ended with the year 100, but "theNineties" are the years whose name includes the wordninety, from '90 to '99, all the years of a century with a 9 as their tens place digit.
Borrowed fromFrenchdécade(“period of ten days”), cognate withGermanDekade etc. In the sense “period of ten days” influenced byEnglishdecade; this meaning is seldom found outside poor translations from English.
"decade", in Charles du Fresne du Cange,Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
Frédéric Godefroy (1880–1902), “decade”, inDictionnaire de l’ancienne langue française et de tous ses dialectes du IXe au XVe siècle[…], Paris:F[riedrich] Vieweg; Émile Bouillon,→OCLC.
, Oxford:Oxford University Press,1894.
