IPA: /ˈskɛrˌmʌŋɡər/
KK: /ˈskɛrˌmʌŋɡər/
A person who spreads fear or panic by sharing alarming information or rumors, often without good reason.
The scaremonger spread false information about the storm, causing unnecessary panic in the community.
Scaremonger is formed from "scare" (from Old Norse *skera*, meaning to frighten) and "monger" (from Old English *mangere*, meaning dealer or trader). The word describes someone who spreads fear or panic, essentially a dealer in fear.
Think of someone who 'deals' ('monger') in 'frightening' ('scare') information — that's why a scaremonger is someone who spreads fear.