myEtymology.com: Latin etymology of duplus

Etymology of the Latin word duplus

the Late Latin word duplus (twice as much, double)

derived from the Classical Latin word duo

derived from the Proto-Indo-European root *dwo-

English duple, French double, French doubleness, French doubling, Italian duplo, Italian doppio, Portuguese dobro, Portuguese duplo, Portuguese dobra, Portuguese dobre, Spanish duplo, Spanish doblo, Spanish dobla

Word found in Late Latin