on hold vs scrubbed

on hold

prep
  • On reserve; being held for someone. 

  • Waiting on a telephone call. 

  • Delayed; postponed; suspended. 

  • Pertaining to a telephone hold state. 

scrubbed

adj
  • With hands washed according to operating room protocol and wearing sterile gown and sterile gloves. 

  • Dwarfed or stunted; scrubby. 

How often have the words on hold and scrubbed occurred in a corpus of books? (source: Google Ngram Viewer )