shopping cart vs trundler

shopping cart

noun
  • A conveyance used to carry groceries and other items while shopping in a store. 

  • The stored list of items that a person has chosen to purchase during an online shopping session but has not yet confirmed. 

trundler

noun
  • Shopping cart. 

  • A person who trundles (something or someone). 

  • A bowler who bowls slowly; a mediocre bowler. 

  • A bowler (player throwing the ball). 

  • A foldable shopping bag with a light frame and wheels. 

  • Golf pushcart. 

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