Pronunciation: [dˈə͡ʊθ djˈuːti az] (IPA) 
The phrase "doeth duty as" is an archaic way of saying "does the duty of." The spelling of "doeth" comes from Middle English and is pronounced /ˈdʊθ/. The "e" at the end of the word is known as a thorn, which was used to represent the "th" sound in Old and Middle English. Today, "doeth" is rarely used in modern English, and "does" is the standard spelling for this verb in present tense.
The term "doeth duty as" is an archaic phrase that originated in Middle English but is no longer commonly used in contemporary language. It is an idiom that encompasses the notions of fulfilling or performing one's responsibilities or obligations in a particular role or position. The phrase "doeth duty as" implies that someone is effectively carrying out the duties and tasks assigned to them or expected of them in a given situation or context.
In this expression, the word "duty" refers to a moral, legal, or social obligation that an individual is required to fulfill. It typically pertains to the responsibilities associated with a particular job, position, or role. The term "doeth," derived from the archaic form of the verb "do," signifies the action of carrying out or performing these obligations. Together, "doeth duty as" denotes the act of faithfully and conscientiously executing one's prescribed duties or responsibilities.
The phrase is often used to describe individuals who act in an interim, substitute, or temporary capacity, implying that they are performing duties that technically belong to someone else but are being handled by them in the absence or unavailability of the designated person. In such cases, the phrase emphasizes the individual's commitment and competence in assuming the required responsibilities to maintain the smooth functioning of an organization or situation.
