spondee

In poetry, a spondee is a metrical foot consisting of two long syllables, as determined by syllable weight in classical meters, or two stressed syllables, as determined by stress in modern meters. This makes it unique in English verse as all other feet (excepting molossus, which has three stressed syllables, and dispondee, which has four stressed syllables) contain at least one unstressed syllable. The word comes from the Greek σπονδή, spondē, "libation".

It is unrealistic to construct a whole, serious poem with spondees - consequently, spondees mainly occur as variants within an anapaestic structure. The spondee is a very important poetic device that poets can use to emphasize meaning within their writing style.

For example (from G. K. Chesterton, "Lepanto"):

White founts falling in the courts of the sun

And the Soldan of Byzantium is smiling as they run;