datum vs discernment

datum

noun
  • A premise from which conclusions are drawn. 

  • A floating reference point, or SLDMB, used to evaluate surface currents in a body of water. Often employed by coastal search and rescue. 

  • A fixed reference point or set of reference points which precisely define a system of measurement or a coordinate system. 

  • A fact known from direct observation. 

verb
  • To provide missing data points by using a mathematical model to extrapolate values that are outside the range of a measuring device. 

discernment

noun
  • The ability to distinguish; judgement. 

  • The condition of understanding. 

  • The act of distinguishing between things. 

  • The ability to distinguish between things. 

  • Aesthetic discrimination; taste, appreciation. 

  • The ability to make wise judgements; sagacity. 

  • Perceptiveness. 

  • Discretion in judging objectively. 

  • The ability to perceive differences that exist. 

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