waterleaf vs weed

waterleaf

noun
  • A tropical plant (Talinum fruticosum), the leaves of which are eaten as a vegetable. 

  • Any plant of the genus Hydrophyllum. 

  • A leaf-shaped decoration used on the capitals of columns in late 12th-century Romanesque architecture 

  • An absorbent unsized paper like blotters as opposed to slake-sized or hard sized papers. 

  • Any plant of Hydrophyllaceae, the waterleaf family. 

weed

noun
  • Any plant unwanted at the place where and at the time when it is growing. 

  • Tobacco. 

  • Underbrush; low shrubs. 

  • A sudden illness or relapse, often attended with fever, which befalls those who are about to give birth, are giving birth, or have recently given birth or miscarried or aborted. 

  • Something unprofitable or troublesome; anything useless. 

  • A puny person; one who has little physical strength. 

  • Cannabis. 

  • Lymphangitis in a horse. 

  • A weak horse, which is therefore unfit to breed from. 

verb
  • To systematically remove materials from a library collection based on a set of criteria. 

  • To remove unwanted vegetation from a cultivated area. 

  • To pilfer the best items from a collection. 

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