biennium

[bahy-en-ee-uhm]

Origin

noun, plural bi·en·ni·ums, bi·en·ni·a

[-en-ee-uh] .

a period of two years.

Origin:
1895–1900; < Latin, equivalent to bi- bi-¹ + -enn- (combining form of annus year) + -ium -ium

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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Biennium is always a great word to know.

So is gobo. Does it mean:

a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.

a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.

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Etymonline

Word Origin & History

biennium

"space of two years," by 1851, from L. biennium, from bi- + annus "year" (see annual).

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