Where does “alundum” come from?

alundum (English) comes from English alumina, from Latin alūmen, from English -ium, from Latin -um, from Proto-Italic *-om, from Proto-Indo-European *-oHom.

alundum (English): alumina, especially an abrasive product made from fused alumina

Definitions

  1. alumina, especially an abrasive product made from fused alumina

Ancestry of “alundum”, step by step

alundum traces back through two separate lines of ancestry.

via English alumina

StepLanguageWordMeaning
1EnglishaluminaAluminum oxide, especially when used in mining,...
2Latinalūmenalum
3English-ium1997, Bryan Pfaffenberger, "Official Microsoft...
4Latin-umnominative neuter singular of -us; accusative...
5Proto-Italic*-om—
6Proto-Indo-European*-oHom—

via English corundum

StepLanguageWordMeaning
1EnglishcorundumAn extremely hard mineral, a form of aluminum...
2Tamilகுருந்தம்ruby, sapphire
Every word from Proto-Indo-European *-oHom →Every word from English -ium →Every word from Latin alūmen →