The phrase "leaved in dust" is a metaphorical expression that implies a total abandonment or neglect of something or someone. In essence, it denotes an act of leaving someone or something behind and disregarding it. Some synonyms that could be used to describe this act include desertion, neglect, abandonment, discard, forsake, cast aside, disregard, and ignore. Of these alternatives, "desertion" may be the most similar to "leaved in dust" as they both communicate a sense of abandonment or leaving something or someone behind. The choice of synonym to describe "leaved in dust" would largely depend on the context of the sentence or situation.