Source : Webster's Revised Unabridged Dictionary (1913)

Douce \Douce\, a. [F. doux, masc., douce, fem., sweet, fr. L.
   duleis sweet.]
   1. Sweet; pleasant. [Obs.]

   2. Sober; prudent; sedate; modest. [Scot.]

            And this is a douce, honest man.      --Sir W.
                                                  Scott.