consume (v.)youdaoicibaDictYouDict[consume 词源字典]
late 14c., from Old French consumer "to consume" (12c.) and directly from Latin consumere "to use up, eat, waste," from com-, intensive prefix (see com-), + sumere "to take," from sub- "under" + emere "to buy, take" (see exempt (adj.)).[consume etymology, consume origin, 英语词源]