The term 'BIG NAME IN ROOT BEER' can be summarized by three crossword solutions: DADS (4 letters), BARQS (5 letters), and AANDW (5 letters). DADS is a brand of root beer that was first created in 1937 and is now owned by the Keurig Dr. Pepper company. BARQS is another popular root beer brand that was founded in 1898 and is now owned by Coca-Cola. AANDW is a root beer brand that was founded in 1919 and is now owned by Yum! Brands. All three of these brands are considered to be big names in the root beer industry.