1
Stage 1 of 3
durus
Latin · ancient
"hard"
hard, giving rise to durare (to last)
2
Stage 2 of 3
duratio
Latin · ancient
"a lasting, a length of time"
a lasting, a length of time, from durare
3
Stage 3 of 3
duration
English · 1400s
"the length of time something lasts"
settled as the English word for the length of time something lasts
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