noun
amanuensis
uh-man-yoo-EN-sis/əˌmænjuˈensɪs/
A person who writes down dictated words or copies manuscripts.
The amanuensis writes down the woman's words as she dictates.

Etymology
The pieces point to a servant 'of the hand,' a Latin designation for a secretary. The hand represents the writing work performed for someone else, whether copying a text or taking dictation.
In context
… just giving extra time, or an amanuensis if there are transcription problems
More examples
- An amanuensis copied the manuscript before it went to the printer.
- Her grandfather employed an amanuensis after losing his sight.
- Several amanuenses prepared copies of the scholar's lectures.
Forms
amanuensis · amanuenses