Meaning

noun food that is discarded (as from a kitchen)

noun a worthless message

noun a receptacle where waste can be discarded

originFrom late Middle English garbage (“the offal of a fowl, giblets, kitchen waste”, originally “refuse, what is purged away”), from Anglo-Norman, from Old French garber (“to refine, make neat or clean”), of Germanic origin, from Frankish *garwijan (“to make ready”). Akin to Old High German garawan (“to prepare, make ready”), Old English ġearwian (“to make ready, adorn”). More at garb, yare, gear

Etymology from Wiktionary, CC BY-SA 3.0