Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

Class IV. Words Relating to the Intellectual Faculties
Division (I) Formation of Ideas
Section II. Precursory Conditions and Operations

465. Discrimination.

   NOUN:DISCRIMINATION, distinction, differentiation, diagnosis, diorism; nice perception; perception -, appreciation- of difference; estimation [See Measurement]; nicety, refinement; taste [See Taste]; critique, judgment; tact; discernment (intelligence) [See Intelligence. Wisdom]; acuteness, penetration; nuances [F.].
  TIP, pointer, dope [slang]; past performances, record.
   VERB:DISCRIMINATE, distinguish, severalize [obs.]; separate; draw the line, sift; separate -, winnow- the chaff from the wheat; separate the wheat from the tares; separate the sheep from the goats; split hairs.
  estimate (measure) [See Measurement]; tip, tip off, sum up, criticize; know which is which, know what’s what [colloq.], know one’s way about, know a thing or two, know what o’clock it is, know the time of day, have cut one’s eyeteeth, know the ways of the world [all colloq.]; “know a hawk from a handsaw” [Hamlet].
  take into -account, – consideration; give -, allow- due weight to; weigh carefully.
   ADJECTIVE:DISCRIMINATING &c. v.; dioristic or dioristical [obs.], critical, diagnostic, perceptive, discriminative, distinctive; nice, acute.
  1. Il y a fagots et fagots.
  2. Rem acu tetigisti.
  3. La critique est aisée et l’art est difficile.
  4. He could distinguish, and divide A hair ’twixt south and south-west side.—Butler