hold-up vs time lag

hold-up

noun
  • A delay or wait. 

  • A robbery at gunpoint. 

  • Women's stockings designed to be worn without suspenders. 

  • The holding back of a card that could win a trick in order to use it later. 

  • The inventory of nuclear material within a separation plant. 

time lag

noun
  • A period of time between one event and another; a delay. 

How often have the words hold-up and time lag occurred in a corpus of books? (source: Google Ngram Viewer )