amanuensis

In Latin, the phrase servus a manu translates loosely as "slave with secretarial duties." (The noun manu, meaning "hand," gave us words such as manuscript, originally meaning a document written or typed by hand.) In the 17th century the second part of this phrase was borrowed into English to create amanuensis, a word for a person who is employed (willingly) to do the important but sometimes menial work of transcribing the words of another. While other quaint words, such as scribe or scrivener, might have similarly described the functions of such a person in the past, these days we’re likely to call him or her a secretary, or maybe an administrative assistant.