dul·cet 
(dŭlsĭt)
(dŭlsĭt)adj.
1.
a. Pleasing to the ear; melodious.
b. Having a soothing, agreeable quality.
2. Archaic Sweet to the taste.
[Alteration (influenced by Latin dulcis) of Middle English doucet, from Old French, diminutive of douce, feminine of doux, sweet, from Latin dulcis.]
dulcet·ly adv.