LULLABY
lullaby, cradlesong
(noun) the act of singing a quiet song to lull a child to sleep
lullaby, cradlesong, berceuse
(noun) a quiet song intended to lull a child to sleep
Source: WordNet® 3.1
Etymology
Noun
lullaby (plural lullabies)
A cradlesong, a soothing song to calm children or lull them to sleep.
Synonyms
• berceuse
• cradle song
Verb
lullaby (third-person singular simple present lullabies, present participle lullabying, simple past and past participle lullabied)
(transitive) To sing a lullaby to.
Source: Wiktionary
lull"a*by, n. Etym: [From Lull, v. t. ]
1. A song to quiet babes or lull them to sleep; that which quiets.
Shak.
2. Hence: Good night; good-by. [Obs.] Shak.
Source: Webster’s Unabridged Dictionary 1913 Edition