Merriam-Webster Collegiate Dictionary - rondel

 or ~le  noun  Etymology: Middle English ~, roundel — more at roundel  Date: 14th century  1. (usually ~le) a circular object; especially a circular jewel or jeweled ring  2.  a. (usually ~) a fixed form of verse based on two rhyme sounds and consisting usually of 14 lines in three stanzas in which the first two lines of the first stanza are repeated as the refrain of the second and third stanzas  b. a poem in this form  c. rondeau 1