Dulcify is a verb that means to sweeten or make something less harsh or bitter. Some synonyms for the word dulcify include mellow, sweeten, soften, soothe, pacify, and appease. Mellow implies a gradual lessening of harshness or intensity, while sweeten implies adding sugar or some other sweetener. Soften suggests making something gentle or tender, while soothe implies a calming effect on the senses. Pacify implies restoring peace or calmness, while appease suggests satisfying someone's demands. These synonyms can be used interchangeably depending on the context and tone of the sentence, but all share the common theme of making something more pleasant or palatable.