ebb vs run low

ebb

verb
  • to fall away or decline 

  • to fish with stakes and nets that serve to prevent the fish from getting back into the sea with the ebb 

  • To cause to flow back. 

  • to flow back or recede 

noun
  • A European bunting, the corn bunting (Emberiza calandra, syns. Emberiza miliaria, Milaria calandra). 

  • The receding movement of the tide. 

  • A gradual decline. 

  • A low state; a state of depression. 

adj
  • low, shallow 

run low

verb
  • To near the end of a supply of something; to be nearly running out. 

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