The correct spelling of the word "doest turn" is actually "dost turn." The word "dost" is a second person singular present tense of "do" in early Modern English. It is pronounced as /dʌst/ with the "o" vowel sound being pronounced as a short "u" sound. When combined with "turn," it forms a common phrase that means "you turn" or "thou turnest." Although not commonly used in modern English, it serves as an important historical reference for students of the language.
The phrase "doest turn" is a combination of two words: "doest" and "turn".
"Doest" is the second-person singular form of the verb "do" in Early Modern English. It is derived from the Old English word "dōst", which means "you do" or "you perform".
"Turn" has its roots in the Old English word "turnian", which means "to rotate" or "to revolve". It comes from the Proto-Germanic word "turnōną", meaning "to turn" or "to rotate".
When combined, "doest turn" means "you rotate" or "you revolve" in archaic English.