The word "verges up on" is a phrasal verb that means to approach or come close to. The spelling of the word "verges" is pronounced /vɜr.dʒɪz/ which is IPA (International Phonetic Alphabet) for "ver-jiz" and means to be at the edge or brink of something. The preposition "up" combines with "on" to form "upon" which is pronounced /əˈpɒn/ or "uh-pon" in IPA. Therefore, "verges up on" is pronounced /vɜr.dʒɪz ʌp ɒn/ or "ver-jiz uh-pon".