Where does “vizinno” come from?

vizinno (Old Portuguese) comes from Latin vicinus, from Latin -inus, from Proto-Italic -īnos, from Proto-Indo-European -iHnos, from Proto-Indo-European -no- — adjectival suffix.

Ancestry of “vizinno”, step by step

StepLanguageWordMeaning
1Latinvicinusnear, neighboring; like, similar, kindred;...
2Latin-inusOf or pertaining to; -ine
3Proto-Italic-īnosof/belonging to
4Proto-Indo-European-iHnosCreates adjectives of materials
5Proto-Indo-European-no-adjectival suffix

Words derived from “vizinno

Every word from Proto-Indo-European -no-Every word from Latin -inusEvery word from Proto-Italic -īnos