septennial

[sep-ten-ee-uh l]

adjective

occurring every seven years.
of or for seven years.

noun

something that occurs every seven years.

Nearby words

  1. septemviral,
  2. septemvirate,
  3. septenarius,
  4. septenary,
  5. septendecillion,
  6. septennium,
  7. septentrion,
  8. septet,
  9. septi-,
  10. septic

Origin of septennial

1630–40; < Late Latin septenni(s) (Latin septuennis) seven years old (sept(em) seven + -enn-, combining form of annus year + -is adj. suffix) + -al1

Related formssep·ten·ni·al·ly, adverb

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for septennial


British Dictionary definitions for septennial

septennial

adjective

occurring every seven years
relating to or lasting seven years
Derived Formsseptennially, adverb

Word Origin for septennial

C17: from Latin septennis, from septem seven + annus a year

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012