amanuensis (n.) Look up amanuensis at
"one who takes dictation or copies what is written by another," 1610s, from Latin amanuensis "adjective used as a noun," an alteration of (servus) a manu "secretary," literally "servant from the hand;" from a for ab "from, of," here used as a designation of office (see ab-), + manu, ablative of manus "hand;" see manual (adj.)). With -ensis, for which see -ese.