grandam vs meemaw

grandam

noun
  • grandmother 

  • old lady, elderly woman 

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. 

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