1
Stage 1 of 3
duplus
Latin · ancient
"twofold"
twofold, from duo (two)
2
Stage 2 of 3
duble
Old French · medieval
"twice as much"
carried into French for something twice as much
3
Stage 3 of 3
double
English · 1200s
"twice the amount, size, or number"
settled as the English word for twice the amount or size
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