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sexennial

adjective sex·en·ni·al \ (ˈ)sek¦senēəl \
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Definition of sexennial

1 : continuing or lasting six years
  • a sexennial period
2 : occurring, appearing, or being made, done, or acted upon every six years
—

sexennially

\-əlē, -li\ adverb

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Origin and Etymology of sexennial

Latin sexennium period of six years (from sex six + -ennium, from annus year) + English -al

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