The word "haddest look" is an archaic form of the phrase "had the look." The phonetic transcription of this word in IPA is /ˈhædəst lʊk/. The apostrophe in "haddest" indicates the omission of the letter 'e,' which is typical of Middle English spelling. The pronunciation of 'had' is retained, while the '-est' ending represents the second-person singular present indicative of the verb 'have.' The spelling of the word 'look' is unchanged from Modern English. Overall, "haddest look" illustrates the evolution of English language spelling over time.