slur

vt. 忽视；草率地看过；含糊地念；诋毁

vi. 含糊地发音；潦草地写字；拖着脚走

n. 污点；诽谤；连音符

中文词源

slur 含混的说话，诽谤，侮辱

来自辅音丛 sl-,黏滑的，淤泥的，泥浆的，比较 slop,slosh,slough,sludge.引申比喻义涂抹泥浆，诽谤，侮辱。词义含混的说话可能来自拟声词。

slur (n.): "deliberate slight, disparaging or slighting remark," c. 1600, from dialectal slur "thin or fluid mud," from Middle English slore (mid-15c.), cognate with Middle Low German sluren, Middle Dutch sloren "to trail in mud." Related to East Frisian sluren "to go about carelessly," Norwegian slora "to be careless." Literal sense of "a mark, stain, smear" is from 1660s in English. The musical sense (1746) is from the notion of "sliding." Meaning "act or habit of slurring" in speech is from 1882.
slur (v.): c. 1600, "smear, soil by smearing," from slur (n.). Meaning "disparage depreciate" is from 1650s. In music, from 1746; of speech, from 1893. Related: Slurred; slurring.

1. 有lur的都有模糊的意思，blur（v 使模糊）.2. slander + blur => slur.3. 谐音“是泥儿”。

1. This is yet another slur on the integrity of the Metropolitan Police.: 这是对伦敦市警察局刚正廉明作风的又一次诽谤。

3. His comments cast a slur on the integrity of his employees.: 他的评论是对其雇员正直品质的诋毁.