inversion vs topsy-turvy

inversion

noun
  • The act of being in an inverted state; being upside down, inside out, or in a reverse sequence. 

  • The position of a chord which has a note other than the root as its bass note. 

  • A situation where air temperature increases with altitude (the ground being colder than the surrounding air). 

  • A section of a roller coaster where passengers are temporarily turned upside down. 

  • An operation on a group, analogous to negation. 

  • The reversal of an interval; the move of one pitch in an interval up or down an octave. 

  • The action of inverting. 

  • The flipping of a melody or contrapuntal line so that high notes become low and vice versa; the reversal of a pitch contour. 

  • Deviation from standard word order by putting the predicate before the subject. It takes place in questions with auxiliary verbs and in normal, affirmative clauses beginning with a negative particle, for the purpose of emphasis. 

  • A segment of DNA in the context of a chromosome that is reversed in orientation relative to a reference karyotype or genome. 

topsy-turvy

noun
  • An act of turning something backwards or upside down, or the situation that something is in after this has happened. 

  • A situation where the natural order of things has been upset. 

  • Chaos, confusion, disorder. 

verb
  • To turn topsy-turvy or upside down; to invert. 

  • To throw into chaos or disorder; to upset. 

adv
  • Backwards or upside down; also, having been overturned or upset. 

  • Not in the natural order of things; in a disorderly manner; chaotically. 

adj
  • Chaotic; disorderly. 

  • Backwards or upside down. 

How often have the words inversion and topsy-turvy occurred in a corpus of books? (source: Google Ngram Viewer )