purloin       
verb [ T ]  formal or humorous uk/pəˈlɔɪn/ us/pɚˈlɔɪn/
 偷,擅自使用
to steal something
  I was using a pen that I'd purloined from the office. 我在用的钢笔是我从办公室顺手牵羊拿来的。 
 Synonyms: filch lift (STEAL)nick (STEAL) pilferpinch snarf steal (TAKE)swipe (STEAL)