douce
adjective
ˈdüs 
chiefly Scotland
: sober, sedate
the douce faces of the mourners
L. J. A. Bell
L. J. A. Bell doucely adverb chiefly Scotland
Word History
Etymology
Middle English, sweet, pleasant, from Anglo-French, from feminine of duz, douz, from Latin dulcis sweet — more at dulcet
First Known Use
1721, in the meaning defined above