triennium

(trī enē əm)

noun pl. trienniums or triennia

a period of three years

Origin: L, see triennial

See triennium in American Heritage Dictionary 4

noun pl. tri·en·ni·ums or tri·en·ni·a (-ĕnˈē-ə)
A period of three years.

Origin:

Origin: Latin

Origin: : tri-, tri-

Origin: + annus, year; see at- in Indo-European roots

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