datum vs remark

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. 

remark

noun
  • A casual observation, comment, or statement 

  • make a remark 

  • An expression, in speech or writing, of something remarked or noticed; a mention of something 

  • An act of pointing out or noticing; notice or observation. 

verb
  • To express in words or writing; to state, as an observation. 

  • To make a remark or remarks on, to comment on (something). 

  • To pay heed to; notice; to take notice of, to perceive. 

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