decenniad

English

Etymology

From Latin decennium (“a period of ten years”) +‎ -ad.[1]

Noun

decenniad (plural decenniads)

  1. A decennium: a period of ten years.

Usage notes

Although decade may be taken as any group of ten years, it is commonly restricted to the informal ten-year periods of the calendar whose last digits run from 0 to 9. Decenniad &c. has no such restriction.

Synonyms

References
  1. Oxford English Dictionary, 1st ed. "decenniad, n." Oxford University Press (Oxford), 1894.
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