petrify  
verb uk/ˈpet.rə.faɪ/ us/ˈpet.rə.faɪ/
  (FRIGHTEN)      
  [ T ]把…吓呆,使惊呆 
to frighten someone a lot, especially so that they are unable to move or speak
  I think you petrified poor Frazer - he never said a word the whole time you were here. 我想你把可怜的弗雷泽吓呆了,你在的时候他一句话也没说。 
   (CHANGE TO STONE)     
 [ I ] geology specialized变成石样物,石化 
If dead things petrify, they change to a substance like stone over a long period of time.