Duet
来自Big Physics
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mid 18th century: from Italian duetto, diminutive of duo ‘duet’, from Latin duo ‘two’.
wiktionary
From Italian duetto(“short musical composition for two voices”), diminutive of duo(“two”).
etymonline
duet (n.)
"musical composition for two voices or instruments," 1740, from French duet, from Italian duetto "short musical composition for two voices," diminutive of duo "two" (from PIE root *dwo- "two"). The Italian form of the noun was used in English from c. 1724. As a verb, "to perform a duet," from 1822. Duettino "short, unpretentious duet" is by 1839.
