Definition of sicken

• v. t. - To make sick; to disease.
• v. t. - To make qualmish; to nauseate; to disgust; as, to sicken the stomach.
• v. t. - To impair; to weaken.
• v. i. - To become sick; to fall into disease.
• v. i. - To be filled to disgust; to be disgusted or nauseated; to be filled with abhorrence or aversion; to be surfeited or satiated.
• v. i. - To become disgusting or tedious.
• v. i. - To become weak; to decay; to languish.