fordrive vs unstay

fordrive

verb
  • To drive away; expel. 

  • To drive about; drive here and there; drive astray. 

unstay

verb
  • To expel; expulse; remove; release; rid. 

  • To undo the establishment of; disestablish; dissolve; divest. 

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