Quartet
来自Big Physics
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early 17th century (in the general sense ‘set of four’): from French quartette, from Italian quartetto, from quarto ‘fourth’, from Latin quartus .
wiktionary
From French quartette, from Italian quartetto. Doublet of cuarteto and quartetto.
etymonline
quartet (n.)
also quartette, 1773, "musical composition for four solo instruments or voices," from French quartette, from Italian quartetto, diminutive of quarto "fourth," from Latin quartus "the fourth, fourth part" (related to quattuor "four," from PIE root *kwetwer- "four"). Meaning "set of four singers or musical players who perform quartets" is from 1814.
