"Haddest it made" is a phrase from old English and is spelled phonetically as /ˈhædəst ɪt meɪd/. The word "haddest" is the second-person singular past tense of "have," and "it" is a pronoun referring to an object. In this context, "made" is a verb that means "created" or "caused to exist." The phrase can be interpreted as "you had created it." The unusual spelling of this phrase reflects the evolution of the English language over time.