Source : Webster's Revised Unabridged Dictionary (1913)

Murky \Murk"y\, a. [Compar. {Murkier}; superl. {Murkiest}.] [OE.
   mirke, merke, AS. myrce, mirce; akin to Icel. myrkr, Dan. &
   Sw. m["o]rk.]
   Dark; obscure; gloomy. ``The murkiest den.'' --Shak.

         A murky deep lowering o'er our heads.    --Addison.

Source : WordNet®

murkier
     See {murky}

murky
     adj 1: (of especially liquids) clouded as with sediment; "a cloudy
            liquid"; "muddy coffee"; "murky waters" [syn: {cloudy},
             {muddy}, {mirky}, {turbid}]
     2: so shaded as to be dark or gloomy; "a murky dungeon"; "murky
        rooms lit by smoke-blackened lamps" [syn: {mirky}]
     [also: {murkiest}, {murkier}]