The word "ATEST" is spelled utilizing the International Phonetic Alphabet (IPA) as /ə.tɛst/. The first syllable of the word is pronounced as a neutral, unstressed schwa sound, followed by a stressed /tɛst/, which sounds like "test" with a slightly different emphasis on the "e" sound. The root of "ATEST" comes from the verb "to attest", meaning to confirm or affirm something to be true. Proper spelling and pronunciation of the word allows for clear and effective communication in both written and verbal contexts.