tremble vs veering

tremble

noun

  • A shake, quiver, or vibration. 

verb

  • To shake, quiver, or vibrate. 

  • To fear; to be afraid. 

veering

noun

  • A motion that veers; a sudden swerve. 

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