What is to exasperate; to provoke; to irritate. [Colloq.] If both were to aggravate her parents, as my brother and sister do mine. Richardson (Clarissa) called?

aggravate — To exasperate; to provoke; to irritate. [Colloq.] If both were to aggravate her parents, as my brother and sister do mine. Richardson (Clarissa). (Webster's 1913.)

Sources