lullaby

UK: ˈlʌləbaɪ | US: ˈlʌləbaɪ

Definition
  1. n. a soothing song sung to lull a child to sleep

  2. n. (figuratively) something that causes a sense of calm or relaxation

Structure
lull <to calm>a <connecting element>by <near, from "bye" (archaic term for "goodbye")>
Etymology

The word "lullaby" combines "lull," derived from Middle English lullen (to soothe or quiet), with the archaic term "bye" (a variant of "goodbye"), suggesting a song to lull a child "to sleep" or "into calm." The connecting "a" blends the two parts smoothly. Over time, "bye" evolved into "-by," losing its literal farewell meaning but retaining the soothing connotation. The word reflects a gentle, rhythmic sound pattern, mirroring its purpose.

Examples
  1. She sang a soft lullaby to her baby at bedtime.

  2. The sound of rain became a natural lullaby, helping him fall asleep.

  3. The mother hummed a traditional lullaby passed down through generations.

  4. The repetitive waves acted like a lullaby, easing her stress.

  5. He recorded a custom lullaby for his newborn niece.