1
Stage 1 of 3
kuruvinda
Sanskrit · ancient
"ruby; a hard red gem"
named the hard red gemstone, ruby
2
Stage 2 of 3
kurundam
Tamil · medieval
"ruby, sapphire"
the South Indian word for ruby and sapphire
3
Stage 3 of 3
corundum
English · 1728
"a very hard crystalline mineral, the source of ruby and sapphire"
adopted via Anglo-Indian contact as the mineralogical name
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