Alexandrine

in reference to a type of verse line, 1580s (adj.); 1660s (n.), said to be from Old French Roman d'Alexandre, name of a poem about Alexander the Great that was popular in the Middle Ages, which used a 12-syllable line of 6 feet (the French heroic verse); it was used in English to vary the heroic verse of 5 feet. The name also sometimes is said to be from Alexandre de Paris, 13c. French poet, who used such a line (and who also wrote one of the popular Alexander the Great poems).