Alexandrine introduce phrasal accentuation, or rigorously observe the medial caesura, as in French." Common usage within the literatures of European languages is broader still, embracing lines syllabic, accentual-syllabic, and (inevitably) stationed ambivalently between the two; lines of 12, 13, or even 14 syllables; lines with obligatory, predominant, and optional caesurae. Although alexandrines occurred in French verse as early as the 12th century, they were slightly looser rhythmically, and vied with the "décasyllabe" and "octosyllabe" for cultural prominence and use in various genres. "The alexandrine came into its own in the middle of the sixteenth century with the poets of the Pléiade
French alexandrine similar terms (in French ' and ' are homophones) designate distinct historical strategies to introduce more prosodic variety into French verse. All three involve verse forms beyond just the alexandrine, but just as the alexandrine was chief among lines, it is the chief target of these modifications. ' (also ', ', or ') are found in a variety of minor and hybrid genres of the 17th and 18th century. The works are composed of lines of various lengths, without regularity in distribution or order; however, each individual line is perfectly metrical, and the rule of alternation of rhymes is followed.