Where does “aerugo” come from?

aerugo (English) comes from Latin aerūgō, from Latin aes, from Proto-Italic aos, from Proto-Italic ajos, from Proto-Indo-European h₂éyos — a metal, copper, bronze.

aerugo (English): metallic rust, particularly of brass or copper;...

Definitions

  1. metallic rust, particularly of brass or copper;...

Ancestry of “aerugo”, step by step

StepLanguageWordMeaning
1Latinaerūgōrust of copper, verdigris
2Latinaesmoney, pay, fee, fare; copper, bronze, brass;...
3Proto-Italicaosbronze, copper
4Proto-Italicajos—
5Proto-Indo-Europeanh₂éyosa metal, copper, bronze
Every word from Proto-Indo-European h₂éyos →Every word from Proto-Italic ajos →Every word from Proto-Italic aos →