loofah vs moisten

loofah

verb
  • To clean or scrub with a loofah. 

noun
  • Any bathing sponge 

  • A tropical vine, of the genus Luffa, having almost cylindrical fruit with a spongy, fibrous interior; the dishcloth gourd 

  • The dried fibrous interior used as a sponge for bathing 

moisten

verb
  • To make moist or moister. 

  • To become moist or moister. 

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