rock-a-bye

or rock·a·bye

[ rok-uh-bahy ]
/ ˈrɒk əˌbaɪ /

interjection

(used to settle a baby or child down to sleep.)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for rock-a-bye

  • "Rock-a-bye, Baby," sang Alfred in strident tones and he swung the child high in his arms.

    Baby Mine|Margaret Mayo