disengage vs unseal

disengage

verb
  • To release or loosen from something that binds, entangles, holds, or interlocks. 

noun
  • A circular movement of the blade that avoids the opponent's parry 

unseal

verb
  • To break the seal of (something) in order to open it. 

  • To open by having a seal broken. 

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