parrock vs sheepfold

parrock

noun

  • An enclosure; a park; a croft, or small field; a paddock. 

verb

  • To enclose or shut in; park. 

sheepfold

noun

  • An enclosure for keeping sheep. 

  • A flock of sheep. 

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