<P> The full versions lyrics are: </P> <Dl> <Dd> Rock - a-bye, baby, in the tree top </Dd> <Dd> When the wind blows the cradle will rock </Dd> <Dd> When the bough breaks the cradle will fall </Dd> <Dd> Down will come baby, cradle and all </Dd> </Dl> <Dd> Rock - a-bye, baby, in the tree top </Dd> <Dd> When the wind blows the cradle will rock </Dd>

What is the origin of rock a bye baby