laver vs throne room

laver

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

  • 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 

throne room

noun
  • A lavatory: a room with a toilet. 

  • A room used for formal public audiences by a monarch. 

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