accessory vs subnormal

accessory

noun
  • A person who is not present at a crime, but contributes to it as an assistant or instigator. 

  • Something that belongs to part of another main thing; something additional and subordinate, an attachment. 

  • Something in a work of art without being indispensably necessary, for example solely ornamental parts. 

  • An article that completes one's basic outfit, such as a scarf or gloves. 

adj
  • Having a secondary, supplementary or subordinate function by accompanying as a subordinate; aiding in a secondary way; being additional; contributing or being contributory. Said of things and actions, very rarely of people (and then usually in a humorous version of the legal sense [or due to confusion between the noun and the adjective]). 

  • Assisting a crime without actually participating in committing the crime itself; being connected as an incident or subordinate to a principal. 

  • Present in a minor amount, and not essential. 

subnormal

noun
  • A person whose abilities are less than normal. 

  • That part of the axis of a curved line which is intercepted between the ordinate and the normal. 

adj
  • denormal 

  • Less than normal. 

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