The spelling of "haddest relation to" can be broken down into its individual sounds using the International Phonetic Alphabet (IPA). "Haddest" is pronounced /ˈhæd.ɪst/ with the emphasis on the first syllable. "Relation" is pronounced /rɪˈleɪ.ʃən/ with the emphasis on the second syllable. "To" is pronounced /tu/ without any emphasis. When combined, the phrase means "you have the closest connection to." The spelling of these words reflects their Old English roots and is not commonly used in modern English.