Source : Webster's Revised Unabridged Dictionary (1913)

Gelid \Gel"id\, a. [L. gelidus, fr. gelun frost, cold. See
   {Cold}, and cf. {Congeal}, {Gelatin}, {Jelly}.]
   Cold; very cold; frozen. ``Gelid founts.'' --Thompson.

Source : WordNet®

gelid
     adj : extremely cold; "an arctic climate";  "a frigid day"; "gelid
           waters of the North Atlantic"; "glacial winds"; "icy
           hands"; "polar weather" [syn: {arctic}, {frigid}, {glacial},
            {icy}, {polar}]