"Doest duty as" is a phrase that is rarely used in modern English, but it is still important to understand its correct spelling. The first word, "doest," is an archaic form of the verb "do," which was commonly used in early Modern English. The word is pronounced as /dʌst/, with a short "u" sound and a "st" sound at the end. "Duty" is pronounced as /ˈdjuːti/, with a long "u" sound and a "t" sound at the end. Therefore, the correct spelling of this phrase is "doest duty as."
The phrase "doest duty as" is an archaic and specific usage of English that was commonly found in older works, particularly in literature and legal contexts. It is derived from Middle English and reflects the use of the second person singular form of the verb "do" in combination with the noun "duty" and the preposition "as."
The phrase "doest duty as" refers to the act of fulfilling or executing the responsibilities and obligations associated with a particular role or position. It suggests the performance of one's duties or tasks according to the established expectations, norms, or requirements. This phrase conveys a sense of commitment, reliability, and conscientiousness in carrying out one's prescribed duties.
It can also carry a connotation of acting as a substitute or stand-in for someone else who is unable or unavailable to fulfill their responsibilities. In this sense, "doest duty as" implies temporarily performing the duties or functions that are typically assigned to another individual.
However, it is essential to note that this phrase is rarely used in modern English. It has been largely replaced by more commonly used expressions, such as "fulfills one's duty as," "carries out one's obligations as," or "acts in the capacity of." Consequently, the phrase "doest duty as" is primarily encountered in historical or literary texts, rather than in contemporary speech or writing.