mellifluous

Etymology

From Latin mellifluus (“flowing like honey”), from mel (“honey”) + fluō (“flow”). Compare superfluous and fluid, from same root, and with dulcet (“sweet speech”), alternative Latinate term with a similar meaning.

adj

1. Flowing like honey.
2. (figurative) Sweet, smooth and musical; pleasant to hear (generally used of a person's voice, tone or writing style).
   No verses can be more mellifluous than Petrarch's: something of this will perhaps be attributed to the softness of the Italian language; but the English tongue is also capable of it, however obstinately Johnson may have pronounced otherwise. 1853, Sir Egerton Brydges, Life of Milton
   Certainly, he returns explicitly to the sound of Urban Hymns on his fourth solo album: neat, sad strings, unhurried percussion and his mellifluous foghorn of a voice. Thu 19 May 2016, Rachel Aroesti, “Richard Ashcroft: These People review”, in The Guardian
   His iconic look, mellifluous croon and timeless songwriting means that he retains a strong fanbase. 2017-10-20, Ben Beaumont-Thomas, “In dreams: Roy Orbison hologram to embark on UK tour in 2018”, in The Guardian
   Radio proved a perfect fit for the mellifluous tones of Mr. Pence, who called himself “Rush Limbaugh on decaf.” July 12 2022, Simon Montlake, “In Jan. 6 spotlight, Mike Pence navigates a tricky post-Trump path”, in The Christian Science Monitor