The term 'drug-related' combines 'drug,' originating from the Old French 'drogue,' meaning 'medicine or chemical,' and 'related,' from Latin 'relatus,' meaning 'brought back or connected.'

'Drug' evolved from the Old French 'drogue' to the modern English 'drug,' while 'related' transformed from Latin 'relatus' to the modern English 'related.'

Initially, 'drug' referred to any medicine or chemical, but in modern usage, it often implies illegal substances. 'Related' has maintained its meaning of connection or association.