twig vs withy

twig

noun
  • A small thin branch of a tree or bush. 

verb
  • To twitch; 

  • To beat with twigs. 

  • To tweak. 

  • To realise something; to catch on; to recognize someone or something. 

  • To understand the meaning of (a person); to comprehend. 

  • To observe slyly; also, to perceive; to discover. 

withy

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

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

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