late 12c., "indolence, sluggishness," formed from Middle English slou, slowe (see slow (adj.)) + abstract formative -th (2). Replaced Old English slæwð "sloth, indolence." Sense of "slowness, tardiness" is from mid-14c. As one of the deadly sins, it translates Latin accidia.
The slow-moving mammal first so called 1610s, a translation of Portuguese preguiça "slowness, slothfulness," from Latin pigritia "laziness" (compare Spanish perezosa "slothful," also "the sloth").
权威例句
1. He admitted a lack of motivation and a feeling of sloth.
他承认自己缺乏动力,总想犯懒。
2. Absence of competition makes for sloth.
没有竞争会导致懒惰.
3. Sloth turns the edge of wit.
懒散能磨去才智的锋芒.
4. Sloth is the mother of poverty.
懒惰是贫穷的原因.
5. The sloth spends most of its time hanging upside down from the branches.