lullaby
lul·laby
noun
Origin
From Middle English lullen (“to lull”) + bye. First recorded c. 1560. Compare Old English bī, bī (“lullaby!”, interjection).
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.