sloth
noun /sləʊθ/
  /sləʊθ/
 - [countable] an animal that lives in trees in tropical parts of America and moves very slowlyTopics Animalsc2
 - [uncountable] (formal) the bad habit of being lazy and unwilling to workTopics Personal qualitiesc2
 
Word OriginOld English: from slow + -th.