The spelling of the word "BETANAG" can be deciphered using the International Phonetic Alphabet (IPA). It is spelled as [bɛtənæg], with the stress on the second syllable. The first syllable " bet " is pronounced as "bɛt" with the "e" sound similar to "bed". The second syllable "an" is pronounced as "ən" and the third and final syllable "ag" is pronounced as "æg". Therefore, "BETANAG" is pronounced as " beh-tuh-nag" with the emphasis on the second syllable.