From Longman Dictionary of Contemporary English-monger-monger /mʌŋɡə $ mɑːŋɡər, mʌŋ-/ suffix [in nouns] 1 BBSELLsomeone who sells a particular thing a fishmonger2 → rumourmonger/gloom-monger/doom-monger etc → warmonger
Examples from the Corpus
-monger• a fishmonger• rumor mongers• warmongersOrigin -monger Old English mangere 