DictionaryRoot: orexis
Greek
orexis
appetite, desire
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noun
anorexia
an-uh-REK-see-uh/ˌænəˈreksiə/
An eating disorder involving severe food restriction and a distorted view of one's body.
Etymology
The pieces name a state of “lack of appetite,” the word’s original medical meaning. In the selected modern sense, anorexia is short for anorexia nervosa, the eating disorder involving self-starvation and fear of weight gain.