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

Class II. Words Relating to Space
Section IV. Motion
4. Motion with Reference to Direction

308. Depression.

   NOUN:DEPRESSION; lowering &c. v.; dip (concavity) [See Concavity]; abasement; detrusion; reduction.
  OVERTHROW, overset, overturn; upset; prostration, subversion, precipitation.
  BOW; curtsy or curtsey, dip [colloq.], bob, obedience [archaic], duck, genuflexion, kotow or kowtow [Chinese], obeisance, salaam or salam.
   VERB:DEPRESS, lower; let -, take- -down, – down a peg [colloq.]; cast; let drop, let fall; sink, debase, bring low, abase, reduce, detrude, pitch, precipitate.
  OVERTHROW, overturn, overset; upset, subvert, prostrate, level, fell; down [archaic or colloq.], cast down, take down, throw down, fling down, dash down, pull down, cut down, knock down, hew down; raze, raze to the ground; trample in the dust, pull about one’s ears; come off -, pull off- one’s high horse [slang]; come off -, get off- one’s perch [slang].
  SIT, sit down, couch, squat; recline [See Horizontality].
  CROUCH, stoop, bend, cower.
  BOW; curtsy or curtsey, genuflect, kotow [Chinese], duck, bob, dip, kneel; bend -, bow- the -head, – knee; incline, make obeisance, salaam or salam, prostrate oneself, bow down.
   ADJECTIVE:DEPRESSED &c. v.; at a low ebb; prostrate (horizontal) [See Horizontality]; detrusive.
  1. Facinus quos inquinat æquat.—Lucan
  2. With looks Downcast and damp.—Milton