rocker

UK: ˈrɒkə | US: ˈrɑːkər

Definition
  1. n. a person who performs or enjoys rock music

  2. n. a curved piece on which an object (e.g., a chair or cradle) rocks back and forth

  3. n. (informal) someone who is lively, unconventional, or rebellious

Structure
rock <to move back and forth>er <agent noun suffix>
Etymology

The word "rocker" combines the verb "rock" (from Old English roccian, meaning "to move to and fro") with the agentive suffix "-er," denoting a person or object associated with the action. Originally referring to the curved base of a cradle or chair (early 19th c.), it later extended to describe musicians in rock 'n' roll (mid-20th c.), emphasizing their dynamic energy. The informal sense of a rebellious individual reflects the countercultural ethos tied to rock music.

Examples
  1. The baby slept soundly in the wooden rocker.

  2. Elvis Presley was a legendary rocker who revolutionized music.

  3. She’s always been a rocker, defying traditional expectations.

  4. The antique chair had ornate rockers carved into its base.

  5. Modern rockers often blend genres to create new sounds.