Quick Summary. The Latin root word fin means an ‘end,’ as in a ‘boundary’ or ‘limit. ‘ Some common English vocabulary words that come from this Latin root word include final, finish, and definition.Click to see full answer. In this manner, what is the meaning of the root fin Finit?root fin means to “end” or “limit”Furthermore, what is the root of a word? A root word is a word or word part that can form the basis of new words through the addition of prefixes and suffixes. Understanding the meanings of common roots can help you work out the meanings of new words as you encounter them. Once you pull off any prefixes or suffixes, the root is usually what remains. Herein, what words have fin in them? 11 letter words containing fin confinement. fingerprint. windsurfing. indefinable. fingerboard. infinitival. faultfinder. definiendum. What does Fin mean in German?• Fin. (n.) End; conclusion; object. (v. t.) To carve or cut up, as a chub.