dolce far nienteyoudaoicibaDictYouDict[dolce far niente 词源字典]
1814, from Italian, literally "sweet doing nothing." The Latin roots are dulcis "sweet" (see dulcet), facere "to make, do" (see factitious), and nec entem, literally "not a being."
This phrase, frequent enough in English literature, does not seem to occur in any Italian author of note. Howells says that he found it current among Neapolitan lazzaroni, but it is not included in any collection of Italian proverbial sayings. [Walsh]
[dolce far niente etymology, dolce far niente origin, 英语词源]