The word “mellifluous” usually refers to sweet, flowing speech. This – in pure form — certainly applies to Lord Krishna, Who is said to be the best linguist and who know every language, even those of non-human entities who communicate within a given species. “Krsna is the linguist of all wonderful languages. He is a truthful and very pleasing speaker. He is expert in speaking, and He is a very wise, learned scholar and a genius.”
“The Greatest Linguist”