Question

a person who writes letters for somebody else​

Answer 1

Answer:

An amanuensis (/əˌmænjuˈɛnsɪs/) is a person employed to write or type what another dictates or to copy what has been written by another, and also refers to a person who signs a document on behalf of another under the latter's authority. The term is often used interchangeably with secretary or scribe.

Explanation:

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Answer 2

Answer:

You could call such a person an epistoler. Epistolist is another word for a letter-writer.

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