cloakroom attendant vs underclothes

cloakroom attendant

noun
  • A person who works in a cloakroom (a room intended for holding guests' cloaks and other heavy outerwear, as at a theater or night club). 

underclothes

noun
  • clothes worn next to the skin and underneath outer clothing 

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