Why was "tantrum" trending last week?
early 15c., diformyte, from Old French deformité "deformity, disfigurement," from Latin deformitatem (nominative deformitas) "ugliness," from deformis "misformed, misshapen," from deformare (see deform).
deformity de·for·mi·ty (dĭ-fôr'mĭ-tē)
The state of being deformed.
A deviation from the normal shape or size of a body part, resulting in disfigurement.