Longman Dictionary of Contemporary English - sicken

~ v 1 to make you feel shocked and angry, especially because you strongly disapprove of something  (The idea of organized dog fights sickens me. | All decent people should be sickened by such a pointless waste of lives.) 2 be sickening for something spoken especially BrE to start to have an illness and show signs of having it  (I think Tommy must be sickening for something, the way he's been moping around.) 3 old-fashioned to gradually become very ill  (The older people just sickened and died as food supplies ran low.) sicken of sth phr v to lose your desire for something or your interest in it  (He finally sickened of the endless round of parties and idle conversation.)