deckhouse vs roundhouse

deckhouse

noun
  • A cabin that protrudes above a ship's deck. 

roundhouse

noun
  • The uppermost room or cabin of any note upon the stern of a ship. 

  • A circular prison, especially a small local lockup or station house. 

  • A prehistoric dwelling typical of northwest Europe in the Iron Age and Bronze Age. 

  • A circular building in which locomotives are housed. 

  • A privy near the bow of a vessel, especially as reserved for officers. 

  • A punch or kick delivered with an exaggerated sweeping movement. 

  • In the game of pinochle, a meld consisting of a queen and king in each of the four suits. 

verb
  • To punch or kick with an exaggerated sweeping movement. 

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