assumption vs datum

assumption

noun
  • Assumptio. 

  • A festival in honor of the ascent of the Virgin Mary into heaven, celebrated on 15 August. 

  • The minor or second proposition in a categorical syllogism. 

  • The act of taking for granted, or supposing a thing without proof; a supposition; an unwarrantable claim. 

  • The taking of a person up into heaven. 

  • The act of assuming, or taking to or upon oneself; the act of taking up or adopting. 

  • The thing supposed; a postulate, or proposition assumed; a supposition. 

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. 

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