roundelay (n.)youdaoicibaDictYouDict[roundelay 词源字典]
1570s, from Middle French rondelet, diminutive of rondel "short poem with a refrain," literally "small circle," diminutive of Old French rond "circle, sphere," originally an adjective from roont (see round (adj.)). Spelling developed by association with lay (n.) "poem to be sung."[roundelay etymology, roundelay origin, 英语词源]