The spelling of the word "haddest effect" reflects the historical evolution of the English language. "Haddest" is the second-person singular past tense form of the verb "have" in Middle English. The IPA phonetic transcription of "haddest" is /ˈhædɛst/. "Effect" is derived from the Latin word "effectus" and entered into English from French. The IPA phonetic transcription of "effect" is /ɛˈfɛkt/. Thus, the spelling of "haddest effect" illustrates the combination of Old English and Latin/French influences in the development of the English language.
The phrase "haddest effect" is not a standalone word, but rather a combination of two different words, "haddest" and "effect".
"Haddest" is the second-person singular past tense of the verb "to have" in Middle English. It originated from Old English "hæfde" and is related to other Germanic languages.
"Effect" comes from the Latin word "effectus", which means accomplishment or result. It entered Middle English in the 14th century and has its roots in the Latin verb "efficere", meaning "to accomplish".
Combining these two words, "haddest effect" would roughly mean "you had an accomplishment", referring to someone's past action or achievement.