IPA: /ˈfɛtərər/
KK: /ˈfɛtərər/
A person who restricts or confines someone or something, often by using chains or other means of restraint.
The fetterer was known for his ability to control even the most unruly prisoners.
Fetterer → It is formed from "fetter" (from Old English "feter", meaning a chain or shackle) and "-er" (meaning a person who). A fetterer is a person who shackles or restrains someone, typically with chains.
Think of someone who uses chains or shackles ('fetter') to restrain another person — that's what a fetterer does.