Where does “double” come from?

double (Middle English) comes from Old French dobler, from Latin dūplāre, from Latin dūplus, from Proto-Italic *duplos — double.

Ancestry of “double”, step by step

StepLanguageWordMeaning
1Old Frenchdoblerto double; to increase dramatically
2Latindūplāre—
3Latindūplusdouble (twice as much, or as big)
4Proto-Italic*duplosdouble

Words derived from “double”

Every word from Proto-Italic *duplos →