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dulcet (adj.)
[dulcet 词源字典]
late 14c., from Old French
doucet
, diminutive of
doux
"sweet," earlier
dulz
, from Latin
dulcis
, from PIE
*dlk-wi-
, suffixed form of root
*dlk-u-
"sweet" (compare
glucose
).
[dulcet etymology, dulcet origin, 英语词源]