al·gid \ˈaljə̇d\adjective Etymology: Latin algidus, from algēre to feel cold; akin to Icelandic elgur slush 1.: chill, cold < the river … grew colder … compressing their … lower limbs in an algid vise — A.J.Cronin > 2.: marked by prostration, cold and clammy skin, and low blood pressure — used chiefly of a severe form of malaria • al·gid·i·ty\alˈjidəd.ē\noun-es