datum vs premise

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. 

premise

noun
  • Any of the first propositions of a syllogism, from which the conclusion is deduced. 

  • A proposition antecedently supposed or proved; something previously stated or assumed as the basis of further argument; a condition; a supposition. 

  • A piece of real estate; a building and its adjuncts. 

  • The fundamental concept that drives the plot of a film or other story. 

  • Matters previously stated or set forth; especially, that part in the beginning of a deed, the office of which is to express the grantor and grantee, and the land or thing granted or conveyed, and all that precedes the habendum; the thing demised or granted. 

verb
  • To make a premise. 

  • To set forth beforehand, or as introductory to the main subject; to offer previously, as something to explain or aid in understanding what follows. 

  • To state or assume something as a proposition to an argument. 

  • To send before the time, or beforehand; hence, to cause to be before something else; to employ previously. 

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