concern vs obfuscation

concern

noun
  • Any set of information that affects the code of a computer program. 

  • The placement of interest or worry on a subject. 

  • The expression of solicitude, anxiety, or compassion toward a thing or person. 

  • That which affects one’s welfare or happiness. A matter of interest to someone. 

  • A worry; a sense that something may be wrong; an identification of a possible problem. 

  • A business, firm or enterprise; a company. 

verb
  • To engage by feeling or sentiment; to interest. 

  • To relate or belong to; to have reference to or connection with; to affect the interest of; to be of importance to. 

  • To make somebody worried. 

obfuscation

noun
  • The alteration of computer code to preserve its behavior while concealing its structure and intent. 

  • Confusion, bewilderment, or a baffled state resulting from something obfuscated, or made more opaque and muddled with the intent to obscure information. 

  • The act or process of obfuscating, or obscuring the perception of something; the concept of concealing the meaning of a communication by making it more confusing and harder to interpret. 

  • A single instance of intentionally obscuring the meaning of something to make it more difficult to grasp. 

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