ether vs muddy

ether

verb
  • To viciously humiliate or insult. 

noun
  • The sky, the heavens; the void, nothingness. 

  • Starting fluid. 

  • Diethyl ether (C₄H₁₀O), an organic compound with a sweet odour used in the past as an anaesthetic. 

  • The medium breathed by human beings; the air. 

  • A particular quality created by or surrounding an object, person, or place; an atmosphere, an aura. 

  • Any of a class of organic compounds containing an oxygen atom bonded to two hydrocarbon groups. 

  • The atmosphere or space as a medium for broadcasting radio and television signals; also, a notional space through which Internet and other digital communications take place; cyberspace. 

  • Often as aether and more fully as luminiferous aether: a substance once thought to fill all unoccupied space that allowed electromagnetic waves to pass through it and interact with matter, without exerting any resistance to matter or energy; its existence was disproved by the 1887 Michelson–Morley experiment and the theory of relativity propounded by Albert Einstein (1879–1955). 

muddy

verb
  • To damage (a person or their reputation); to sully, to tarnish. 

  • To become contaminated or impure. 

  • To make (something) impure; to contaminate. 

  • To make (a colour) dirty, dull, or muted. 

  • To make (a matter, etc.) more complicated or unclear; to make a mess of (something). 

  • To cover or splash (someone or something) with mud. 

  • Sometimes followed by up: to become covered or splashed with mud; to become dirty or soiled. 

  • To make (water or some other liquid) cloudy or turbid by stirring up mud or other sediment. 

  • To confuse (a person or their thinking); to muddle. 

  • Of water or some other liquid: to become cloudy or turbid. 

noun
  • The edible mud crab or mangrove crab (Scylla serrata). 

adj
  • Of the air: not fresh; impure, polluted. 

  • Originally, morally or religiously wrong; corrupt, sinful; now, morally or legally dubious; shady, sketchy. 

  • Of a colour: not bright: dirty, dull. 

  • Dirty, filthy. 

  • Of water or some other liquid: containing mud or (by extension) other sediment in suspension; cloudy, turbid. 

  • Of or relating to mud; also, having the characteristics of mud, especially in colour or taste. 

  • Of an image: blurry or dim. 

  • Of sound (especially during performance, recording, or playback): indistinct, muffled. 

  • Covered or splashed with, or full of, mud (“wet soil”). 

  • Soiled with feces. 

  • Of light: cloudy, opaque. 

  • Of speech, thinking, or writing: ambiguous or vague; or confused, incoherent, or mixed-up; also, poorly expressed. 

  • Not clear. 

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