The word 'vibraphone' is a modern 20th-century coinage, created by combining classical roots to precisely describe a new instrument. The first element, 'vibr-', is drawn from the Latin verb vibrare, meaning 'to shake' or 'to move rapidly to and fro', which perfectly captures the instrument's defining feature: the motor-driven pulsating vibrato. The second element, '-phone', originates from the ancient Greek phōnē, meaning 'sound' or 'voice', a common component in the names of musical instruments like 'saxophone' and 'xylophone'. The connecting vowel 'a' is a typical morphological bridge in such Greco-Latin hybrid formations. Thus, the term literally and logically means "an instrument that produces a shaking sound," directly linking the physical mechanism of its rotating fans to the distinctive auditory effect it creates.

Structure: vibr (to shake) + a + phone (sound) • vibr: From Latin vibrare (to shake, to brandish). In this word, it indicates the characteristic vibrato or trembling sound. • a: A connecting vowel, often used in scientific and technical terms to join roots of Greek or Latin origin. • phone: From Greek phōnē (sound, voice). In this word, it indicates an instrument that produces sound.