IPA: /ˈmænˌsleɪər/
KK: /ˈmænˌsleɪər/
A person or animal that kills another human being.
The story revolves around a notorious manslayer who was feared by many.
Manslayer → It is formed from "man" (from Old English "mann", meaning human being) and "slayer" (from Old English "slean", meaning to strike or kill). The word "manslayer" refers to someone who kills a human being.
Think of a 'man' (human being) being 'struck' or 'killed' — that's why a manslayer is someone who kills a person.