laver vs washbasin

laver

noun
  • That which laves, particularly a washbasin. 

  • Other seaweeds similar in appearance or use, especially 

  • One who laves: a washer. 

  • A red alga/seaweed, Porphyra umbilicalis (syn. Porphyra laciniata), eaten as a vegetable. 

  • Porphyra vulgaris 

  • Where one laves, a washroom, particularly a lavatorium, the washing area in a monastery. 

washbasin

noun
  • A basin used for washing, (now) particularly a permanently installed sink, fitted with a water supply and a drain, for washing the hands and face. 

  • A laundry sink. 

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