Meaning

noun any collection of particles (e.g., smoke or dust) or gases that is visible

noun a visible mass of water or ice particles suspended at a considerable altitude

noun out of touch with reality

originFrom Middle English cloud, from Old English clūd (“mass of stone, rock, boulder, hill”), from Proto-West Germanic *klūt, from Proto-Germanic *klūtaz, *klutaz (“lump, mass, conglomeration”), from Proto-Indo-European *gel- (“to ball up, clench”). Cognate with Scots clood, clud (“cloud”), Dutch kluit (“lump, mass, clod”), German Low German Kluut, Kluute (“lump, mass, ball”), German Kloß (“lump,…

Etymology from Wiktionary, CC BY-SA 3.0