overside vs topside

overside

noun
  • The side facing up or positioned above; the topside; surface. 

  • The reverse or opposite side of something. 

adj
  • Located or positioned over the side, especially of a ship. 

  • On the opposite side. 

adv
  • Over the side. 

topside

noun
  • The side or part of something that is at the top. 

  • The structure and assembly of modules above the jacket or gravity base sub structure. 

  • The surface of a ship’s hull that is above the water line. 

  • The outer side of a round of beef. 

  • The structure and assembly of modules on the deck of any floating installation. 

adv
  • Abovedeck, such as on the weather deck or bridge. 

adj
  • Abovedeck, such as on the weather deck or bridge. 

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