downlink vs entrust

downlink

verb
  • To transmit a signal from a satellite to a terrestrial receiving station. 

noun
  • Transmission of data from a network, usually wireless, to the user. 

  • The transmission of a signal from a satellite to a receiving station on earth; or the means of this transmission. 

entrust

verb
  • Can I entrust you with a secret? 

  • To trust to the care of. 

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