From logos; fluent, i.e. An orator -- eloquent.
see GREEK logos
1. learned, a man of letters, skilled in literature and the arts; especially versed in history and antiquities.
2. skilled in speech, eloquent: so Acts 18:24 (which, however, others refer to 1 (finding its explanation in the following δυαντος κτλ.)). The use of the word is fully exhibited by Lobeck ad Phryn., p. 198. ((Herodotus, Euripides, others))