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

Class V. Words Releasing to the Voluntary Powers
Division (I) Individual Volition
Section IV. Antagonism
1. Conditional Antagonism

705. Facility.

   NOUN:FACILITY, ease; easiness &c. adj.; capability; feasibility (practicability) [See Possibility]; flexibility, pliancy [See Softness]; smoothness [See Smoothness]; disencumbrance, disentanglement; deoppilation [obs.]; permission [See Permission].
  plain -, smooth -, straight- sailing; mere child’s play, holiday task; cinch, snap [both slang, U. S.].
  ALL CLEAR, smooth water, fair wind; smooth -, royal- road; clear -coast, – stage, – course; straight course; tabula rasa [L.]; full play (freedom) [See Freedom].
   VERB:BE EASY &c. adj.; go on -, run- smoothly; have full play &c. n.; go -, run- on all fours [colloq.]; hit on all -four, – six, – eight, – twelve (cylinders) [automobile cant]; obey the helm, work well, work smoothly, work like a machine.
  flow -, swim -, drift -, go- with the- -stream, – tide; see one’s way; have it all one’s own way, have the game in one’s own hands; walk over the course, win at a canter, win at a walk, win hands down [colloq.]; make little of, make light of, make nothing of; be at home in (skillful) [See Skill].
  RENDER EASY &c. adj.; facilitate, smooth, ease, popularize; lighten, – the labor; free, clear; disencumber, disembarrass, disentangle, disengage; deobstruct, unclog, extricate, unravel, unknot, get the kinks out of; untie -, cut- the knot; disburden, unload, exonerate, emancipate, free from, deoppilate [obs.]; humor (aid) [See Aid]; lubricate [See Lubrication]; relieve [See Relief].
  leave a hole to creep out of, leave a loophole, leave the matter open; give the reins to, give full play, give full swing; make way for; open the -door to, – way; prepare -, smooth -, clear- the -ground, – way, – path, – road; make all clear for, pave the way, bridge over; permit [See Permission].
   ADJECTIVE:EASY, facile; feasible (practicable) [See Possibility]; easily -managed, – accomplished; within reach, accessible, easy of access, for the million, open to.
  MANAGEABLE, wieldy [rare], toward, towardly, tractable; submissive; yielding, ductile; suant or suent [local U. S. & prov. Eng.]; tractable (docile) [See Willingness], pliant (soft) [See Softness]; glib [obs.], slippery; smooth [See Smoothness]; on friction wheels, on velvet.
  UNBURDENED, disburdened, disencumbered, disembarrassed; exonerated; unloaded, unobstructed, untrammeled; unrestrained (free) [See Freedom]; at ease, light.
  at home, quite at home; in one’s element, in smooth water.
   ADVERB:EASILY &c. adj.; readily, smoothly, swimmingly, with no effort, no easy terms, single-handed, with one hand tied behind one’s back.
  1. Touch and go.
  2. Custom hath made it in him a property of easiness.—Hamlet