IPA: /ʌnˈfɛtə/
KK: /ʌnˈfɛtər/
To release someone or something from limitations or control.
The new law aims to unfetter the economy and encourage growth.
Past: unfettered
Past Participle: unfettered
Unfetter → It is formed from "un-" (meaning not) and "fetter" (from Old English *fetter*, meaning a chain or shackle). The word "unfetter" means to not be bound by chains or restrictions, thus to be free.
Think of being 'not' ('un-') bound by 'chains' ('fetter') — that's why unfetter means to be free.