meemaw vs nan

meemaw

noun
  • Synonym of mamaw (“grandmother”) 

verb
  • To mouth words so that they can be heard over noise (or later so that they cannot be overheard), originally in the cotton industry of Lancashire. 

nan

noun
  • Synonym of grandmother. 

  • Synonym of nursemaid. 

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