emaciated
adjective /ɪˈmeɪsieɪtɪd/,  /ɪˈmeɪʃieɪtɪd/
  /ɪˈmeɪsieɪtɪd/,  /ɪˈmeɪʃieɪtɪd/
 - thin and weak, usually because of illness or lack of food
- He was thirty, but looked fifty, with pale skin, hopeless eyes and an emaciated body, covered in sores.
 
Oxford Collocations Dictionaryverbs- be
 - look
 - become
 - …
 
- severely
 
Word Originearly 17th cent.: from Latin emaciat- ‘made thin’, from the verb emaciare, from e- (variant of ex-, expressing a change of state) + macies ‘leanness’.