silt vs solids

silt

verb
  • To flow through crevices; to percolate. 

  • To clog or fill with silt. 

  • To become clogged with silt. 

noun
  • Mud or fine earth deposited from running or standing water. 

  • Material with similar physical characteristics, whatever its origins or transport. 

  • A particle from 3.9 to 62.5 microns in diameter, following the Wentworth scale. 

solids

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