1
Stage 1 of 3
upala
Sanskrit · ancient
"a precious stone"
a precious stone, the root behind the iridescent gem
2
Stage 2 of 3
opalus
Latin · ancient
"an iridescent gemstone"
adopted into Latin gemstone vocabulary
3
Stage 3 of 3
opal
English · 1500s
"an iridescent gemstone"
settled as the English word for the iridescent gemstone
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