the.com/ventriloquist

means A performer who speaks without visibly moving their lips, throwing their voice to make it seem like it's coming from a puppet or elsewhere.

from From Latin venter ('belly') plus loqui ('to speak') — literally 'belly-speaker.' The term reflects an old, mistaken belief, going back to ancient Greece, that the sound was actually produced in the stomach by spirits or trapped air rather than through ordinary speech with a disguised mouth movement. The craft is ancient; the skill is really about breath control and misdirection, not anatomy.