-monger
/ˈmʌŋɡə/combiningForm
1Denoting a dealer or trader in a specified commodity: fishmonger cheesemonger
1.1Denoting a person who promotes a specified activity, situation, or feeling, especially one that is undesirable or discreditable: warmonger
Origin
Old English mangere, from mangian 'to traffic', of Germanic origin, based on Latin mango 'dealer'.