worsen; make worse
If your PhD guide becomes hostile to you, complaining to the administration will only exacerbate the situation.
e ex (out, away)#acer acris (sharp, pungent, bitter, eager, fierce) (Latin)
alleviate, ameliorate, assuage, palliate
Latin ex+acerb+ate; Latin acerb- means bitter, harsh; So exacerbate means to make bittter, to worsen. "Ex Her b Ate". her ex came and ate with her family. which worsen the relation even more. if in an Exam u keep your hand on your head [ie SAR (in hindi)/CER]. you wil WORSEN your paper.