the.com/mannequin

means A stiff human-shaped form used to display clothes, or — stretched a little — a person who models them with similar blank poise.

from From French mannequin, borrowed from Dutch manneken, meaning 'little man' — a diminutive of man. The Dutch word originally referred to small figures or models (think little carved men used by artists to study poses), and French fashion houses adopted it for the human models, then the dummies, who wore the clothes.