Dictionary.com
definitions
  • synonyms

septennial

[sep-ten-ee-uh l]
See more synonyms on Thesaurus.com
adjective
  1. occurring every seven years.
  2. of or for seven years.
noun
  1. something that occurs every seven years.

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. 2018

Examples from the Web for septennial

Historical Examples


British Dictionary definitions for septennial

septennial

adjective
  1. occurring every seven years
  2. relating to or lasting seven years
Derived Formsseptennially, adverb

Word Origin

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