Where does “vernacchio” come from?

vernacchio (Neapolitan) comes from Latin vernāculus, from Latin -culus, from Proto-Italic *-kelos — Diminutive suffix.

Ancestry of “vernacchio”, step by step

StepLanguageWordMeaning
1Latinvernāculusnative, domestic, indigenous, vernacular (originally of slaves)
2Latin-culusAlternative form of -ulus; added to a noun to...
3Proto-Italic*-kelosDiminutive suffix

Words derived from “vernacchio”

Every word from Proto-Italic *-kelos →Every word from Latin -culus →Every word from Latin vernāculus →