octennial

[ ok-ten-ee-uhl ]

adjective

1. occurring every eight years.
2. of or for eight years.

octennial

/ ɒkˈtɛnɪəl /

adjective

1. occurring every eight years
2. lasting for eight years

Derived Forms

• ocˈtennially, adverb

Other Words From

• oc·tenni·al·ly adjective

Word History and Origins

Origin of octennial¹

1650–60; < Late Latin octenni ( um ) eight-year period ( oct- oct- + -enn-, combining form of annus year + -ium -ium ) + -al ¹

Word History and Origins

Origin of octennial¹

C17: from Latin octennium eight years, from octo eight + annus year

Example Sentences

Of late these shackles, if I mistake not, have been broken; and octennial parliaments have besides been established.

From Project Gutenberg

Octennial, ok-ten′i-al, adj. happening every eighth year: lasting eight years.

From Project Gutenberg