sidelock vs tresses

sidelock

noun
  • A lock of hair worn at the side of the head. 

  • The design of a gun that has the lockwork mounted to the inside of a plate; compare boxlock. 

tresses

noun
  • a head of hair, particularly when the hair is of length 

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