Drug

As a noun, it is a substance used as medicine or taken for its effects on the body or mind, sometimes illegally. As a verb, it means to give someone a drug, especially without their knowledge, to affect their behavior or consciousness.

From Middle French 'drogue', of uncertain origin, possibly from Middle Dutch 'droge (vaten)' meaning 'dry (barrels)' referring to dry goods like herbs and spices. It entered English in the late Middle Ages. The meaning narrowed to medicinal and mind-affecting substances.