branchlet vs withy

branchlet

noun
  • A small branch; a twig or sprig. 

withy

noun
  • A long flexible twig of the osier; a withe. 

  • The osier (Salix viminalis), a type of willow. 

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