The word "voiceprint" is a modern compound, formed in the mid-20th century by analogy with "fingerprint." It combines "voice," a term tracing back to the Latin vōx meaning "voice" or "sound," with "print," derived from the Latin premere meaning "to press," which evolved to signify a distinctive impression or mark. The logic of the construction is transparent: just as a fingerprint is a unique physical impression left by a finger, a voiceprint is a unique graphical or digital pattern derived from a person's vocal characteristics. This compound elegantly applies the established concept of a biometric identifier to the realm of auditory data, creating a concrete metaphor for an abstract technological process.

Structure: voice (sound) + print (mark) - voice: From Old French voiz, from Latin vōx (voice, sound, word). Functions as the base noun denoting the source of the sound. - print: From Old French preinte (impression, mark), from Latin premere (to press). Functions as the noun-forming element denoting a recorded or reproduced impression or pattern.